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Patent Analysis of

Methods and apparatus for reducing cellular telephone radiation exposure

Updated Time 12 June 2019

Patent Registration Data

Publication Number

US10003368

Application Number

US15/069922

Application Date

14 March 2016

Publication Date

19 June 2018

Current Assignee

DUGAN, BRIAN M.

Original Assignee (Applicant)

DUGAN, BRIAN M.

International Classification

H04W4/00,H04M1/02,H04M1/725,H04B1/3827,H04W88/06

Cooperative Classification

H04W4/50,H04B1/3838,H04M1/0256,H04M1/7253,H04W88/06

Inventor

DUGAN, BRIAN M.

Patent Images

This patent contains figures and images illustrating the invention and its embodiment.

US10003368 Methods reducing 1 US10003368 Methods reducing 2 US10003368 Methods reducing 3
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Abstract

In some aspects, a cellular telephone includes (1) a user interface portion having a communications circuit; and (2) a cellular portion having a first communications circuit adapted to communicate with the communications circuit of the user interface portion and a second communications circuit adapted to communicate with a cellular network. The cellular portion is removably coupled to the user interface portion so as to allow a user of the cellular telephone to communicate over a cellular network by using the user interface portion while the cellular portion is separated from the user interface portion. Numerous other aspects are provided.

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Claims

1. A system comprising:a mobile telephone, wherein the mobile telephone comprises: a low radiation handset; and a cellular unit separate from the low radiation handset and adapted to communicate with the low radiation handset and to allow the low radiation handset to communicate over a cellular network; wherein low radiation handset includes a low radiation (LR) wireless communicator including a user interface; and wherein the cellular unit includes a high radiation (HR) wireless communicator including a high power cellular network communication circuit;wherein: the LR and HR wireless communicators are adapted to physically couple together for conventional use as a mobile telephone; the LR and HR wireless communicators are adapted to be physically separated and still allow use of the mobile telephone to make calls on a cellular network, wherein the HR wireless communicator relays communications signals between the LR wireless communicator and the cellular network, and a first communication power level between the LR and HR wireless communicators is lower than a second communication power level between the HR wireless communicator and the cellular network to reduce radiation exposure to a user; and the HR wireless communicator is operable to sense that the HR wireless communicator is separated from the LR wireless communicator; andan application executable on the mobile telephone, the application including computer program code operative to direct the mobile telephone to: detect the presence of a WiFi network; andin response to detecting the presence of the WiFi network: switch the mobile telephone to a low radiation mode by communicating using low radiation emitting communications circuitry and a WiFi communications protocol; stop communicating directly with a cellular network; and allow voice communication from the mobile telephone over the WiFi network without communicating directly over a cellular network and using a radiation level that is less than is used to communicate directly over a cellular network using the mobile telephone; wherein during voice communication over the WiFi network, a user of the mobile telephone is not exposed to higher radiation levels used to communicate directly with a cellular tower.

2. The system of claim 1 wherein the application is configured to allow the mobile telephone to allow a user to make voice calls directly through a wireless router.

3. The system of claim 1 wherein the low radiation handset is a mobile telephone in a low radiation mode of operation.

4. The system of claim 3 wherein the mobile telephone is adapted to detect the presence of the cellular unit.

5. The system of claim 4 wherein the mobile telephone is adapted to automatically switch to a low radiation mode after detecting the presence of the cellular unit.

6. The system of claim 1 wherein the low radiation handset and the cellular unit are adapted to communicate with each other via WiFi.

7. The system of claim 1 wherein the cellular unit is adapted to couple to a wireless router.

8. The system of claim 1 wherein the cellular unit employs a maximum electromagnetic radiation power level greater than permissible for a mobile telephone.

9. The system of claim 1 wherein the HR wireless communicator is operable to automatically increase the second communication power level to a third communication power level in response to the HR wireless communicator sensing that the HR wireless communicator is separated from the LR wireless communicator.

10. The system of claim 9 wherein: the first communication power level of the LR wireless communicator is provided by a first power supply that includes a battery; and the second communication power level of the HR wireless communicator is provided by a second power supply.

11. The system of claim 1 wherein the LR and HR wireless communicators are further adapted to allow a user to make calls on a cellular network when separated without exposing the user to radiation levels of a conventional mobile telephone.

12. The system of claim 1 wherein the LR wireless communicator does not include a cellular network communication circuit.

13. The system of claim 1 wherein the HR wireless communicator does not include a user interface.

14. The system of claim 1 wherein the HR wireless communicator is operable at the second communication power level when physically coupled to the LR wireless communicator.

15. The system of claim 12 wherein the HR wireless communicator switches to the second communication power level automatically when the HR wireless communicator is physically coupled to the LR wireless communicator.

16. The system of claim 1 wherein the LR wireless communicator is adapted to communicate with the HR wireless communicator via a wireless router.

17. The system of claim 9 wherein the third communication power level is greater than a maximum electromagnetic radiation power level permissible for a cellular telephone.

18. A system comprising: a mobile telephone; andan application executable on the mobile telephone, the application including computer program code operative to direct the mobile telephone to: detect the presence of a WiFi network; andin response to detecting the presence of the WiFi network: switch the mobile telephone to a low radiation mode by communicating using low radiation emitting communications circuitry and a WiFi communications protocol; stop communicating directly with a cellular network; and allow voice communication from the mobile telephone over the WiFi network without communicating directly over a cellular network and using a radiation level that is less than is used to communicate directly over a cellular network using the mobile telephone; wherein: during voice communication over the WiFi network, a user of the mobile telephone is not exposed to higher radiation levels used to communicate directly with a cellular tower;the mobile telephone comprises: a low radiation (LR) wireless communicator including a user interface, and high radiation (HR) wireless communicator including a high power cellular network communication circuit; the LR and HR wireless communicators are adapted to physically couple together for conventional use as a mobile telephone; the LR and HR wireless communicators are adapted to be physically separated and still allow use of the mobile telephone to make calls on a cellular network, wherein the HR wireless communicator relays communications signals between the LR wireless communicator and the cellular network, and a first communication power level between the LR and HR wireless communicators is lower than a second communication power level between the HR wireless communicator and the cellular network to reduce radiation exposure to a user; the HR wireless communicator is operable to sense that the HR wireless communicator is separated from the LR wireless communicator; the HR wireless communicator is operable to automatically increase the second communication power level to a third communication power level when the HR wireless communicator senses that the HR wireless communicator is separated from the LR wireless communicator; the first communication power level of the LR wireless communicator is provided by a first power supply that includes a battery; and the second communication power level of the HR wireless communicator is provided by a second power supply.

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Claim Tree

  • 1
    1. A system comprising:
    • a mobile telephone, wherein the mobile telephone comprises: a low radiation handset
    • and a cellular unit separate from the low radiation handset and adapted to communicate with the low radiation handset and to allow the low radiation handset to communicate over a cellular network
    • wherein low radiation handset includes a low radiation (LR) wireless communicator including a user interface
    • and wherein the cellular unit includes a high radiation (HR) wireless communicator including a high power cellular network communication circuit
    • wherein: the LR and HR wireless communicators are adapted to physically couple together for conventional use as a mobile telephone
    • the LR and HR wireless communicators are adapted to be physically separated and still allow use of the mobile telephone to make calls on a cellular network, wherein the HR wireless communicator relays communications signals between the LR wireless communicator and the cellular network, and a first communication power level between the LR and HR wireless communicators is lower than a second communication power level between the HR wireless communicator and the cellular network to reduce radiation exposure to a user
    • and the HR wireless communicator is operable to sense that the HR wireless communicator is separated from the LR wireless communicator
    • andan application executable on the mobile telephone, the application including computer program code operative to direct the mobile telephone to: detect the presence of a WiFi network
    • andin response to detecting the presence of the WiFi network: switch the mobile telephone to a low radiation mode by communicating using low radiation emitting communications circuitry and a WiFi communications protocol
    • stop communicating directly with a cellular network
    • and allow voice communication from the mobile telephone over the WiFi network without communicating directly over a cellular network and using a radiation level that is less than is used to communicate directly over a cellular network using the mobile telephone
    • wherein during voice communication over the WiFi network, a user of the mobile telephone is not exposed to higher radiation levels used to communicate directly with a cellular tower.
    • 2. The system of claim 1 wherein
      • the application is configured to allow the mobile telephone to allow a user to make voice calls directly through a wireless router.
    • 3. The system of claim 1 wherein
      • the low radiation handset is a mobile telephone in a low radiation mode of operation.
    • 6. The system of claim 1 wherein
      • the low radiation handset and the cellular unit are adapted to communicate with each other via WiFi.
    • 7. The system of claim 1 wherein
      • the cellular unit is adapted to couple to a wireless router.
    • 8. The system of claim 1 wherein
      • the cellular unit employs a maximum electromagnetic radiation power level greater than permissible for a mobile telephone.
    • 9. The system of claim 1 wherein
      • the HR wireless communicator is operable to automatically increase the second communication power level to a third communication power level in response to the HR wireless communicator sensing that the HR wireless communicator is separated from the LR wireless communicator.
    • 11. The system of claim 1 wherein
      • the LR and HR wireless communicators are further adapted to allow a user to make calls on a cellular network when separated without exposing the user to radiation levels of a conventional mobile telephone.
    • 12. The system of claim 1 wherein
      • the LR wireless communicator does not include a cellular network communication circuit.
    • 13. The system of claim 1 wherein
      • the HR wireless communicator does not include a user interface.
    • 14. The system of claim 1 wherein
      • the HR wireless communicator is operable at the second communication power level when physically coupled to the LR wireless communicator.
    • 16. The system of claim 1 wherein
      • the LR wireless communicator is adapted to communicate with the HR wireless communicator via a wireless router.
  • 18
    18. A system comprising:
    • a mobile telephone
    • andan application executable on the mobile telephone, the application including computer program code operative to direct the mobile telephone to: detect the presence of a WiFi network
    • andin response to detecting the presence of the WiFi network: switch the mobile telephone to a low radiation mode by communicating using low radiation emitting communications circuitry and a WiFi communications protocol
    • stop communicating directly with a cellular network
    • and allow voice communication from the mobile telephone over the WiFi network without communicating directly over a cellular network and using a radiation level that is less than is used to communicate directly over a cellular network using the mobile telephone
    • wherein: during voice communication over the WiFi network, a user of the mobile telephone is not exposed to higher radiation levels used to communicate directly with a cellular tower
    • the mobile telephone comprises: a low radiation (LR) wireless communicator including a user interface, and high radiation (HR) wireless communicator including a high power cellular network communication circuit
    • the LR and HR wireless communicators are adapted to physically couple together for conventional use as a mobile telephone
    • the LR and HR wireless communicators are adapted to be physically separated and still allow use of the mobile telephone to make calls on a cellular network, wherein the HR wireless communicator relays communications signals between the LR wireless communicator and the cellular network, and a first communication power level between the LR and HR wireless communicators is lower than a second communication power level between the HR wireless communicator and the cellular network to reduce radiation exposure to a user
    • the HR wireless communicator is operable to sense that the HR wireless communicator is separated from the LR wireless communicator
    • the HR wireless communicator is operable to automatically increase the second communication power level to a third communication power level when the HR wireless communicator senses that the HR wireless communicator is separated from the LR wireless communicator
    • the first communication power level of the LR wireless communicator is provided by a first power supply that includes a battery
    • and the second communication power level of the HR wireless communicator is provided by a second power supply.
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Description

FIELD OF THE INVENTION

The present invention relates to cellular telephones, and more particularly to reducing exposure to radiation from cellular telephones.

BACKGROUND

Cellular telephones are very convenient and have become important to modern society. Cellular telephones allow people to be in constant contact, access voice and data virtually anywhere, etc. However, some recent studies have shown a potential increased risk of cancer associated with use of cellular telephones. Accordingly, a need exists for methods and apparatus for reducing cellular telephone radiation exposure.

SUMMARY

In some aspects, a system is provided that includes (1) a low radiation handset; and (2) a cellular unit separate from the low radiation handset and adapted to communicate with the low radiation handset and to allow the low radiation handset to communicate over a cellular network.

In some aspects, a cellular telephone includes (1) a user interface portion having a communications circuit; and (2) a cellular portion having a first communications circuit adapted to communicate with the communications circuit of the user interface portion and a second communications circuit adapted to communicate with a cellular network. The cellular portion is removably coupled to the user interface portion so as to allow a user of the cellular telephone to communicate over a cellular network by using the user interface portion while the cellular portion is separated from the user interface portion.

In some aspects, a method is provided that includes providing a cellular telephone having (1) a user interface portion having a communications circuit; and (2) a cellular portion having a first communications circuit adapted to communicate with the communications circuit of the user interface portion and a second communications circuit adapted to communicate with a cellular network. The method includes detaching the cellular portion from the user interface portion; and using the user interface portion to place a cellular telephone call when the cellular portion is detached from the user interface portion.

Numerous other aspects are provided, as are various methods, apparatus and computer program products for carrying out these and other aspects of the invention. Each computer program product may be carried by a medium readable by a computer (e.g., a carrier wave signal, a floppy disc, a hard drive, a random access memory, etc.).

Other features and aspects of the present invention will become more fully apparent from the following detailed description, the appended claims, and the accompanying drawings.

BRIEF DESCRIPTION OF THE FIGURES

FIG. 1 is a side schematic diagram of a cellular telephone provided in accordance with the present invention;

FIG. 2A is a side schematic diagram of the cellular telephone of FIG. 1 with a cellular portion removed in accordance with the present invention;

FIG. 2B is a side schematic diagram of the cellular telephone of FIG. 1 with a cellular portion being plugged into an outlet in accordance with the present invention; and

FIG. 3 is a schematic diagram of a cellular unit provided in accordance with the present invention.

DETAILED DESCRIPTION

Cellular telephones emit electromagnetic radiation when communicating over a cellular network. The amount of radiation emitted varies, with larger amounts of radiation typically being emitted when a cellular telephone is indoors, further away from a cellular tower or otherwise located in a poor signal strength area in relation to a cellular network.

In one or more embodiments of the invention, methods and apparatus are provided for reducing exposure of a person to radiation from a cellular telephone while still allowing the user to communicate via the cellular network. For example, in some embodiments, a low radiation (LR) handset is provided that is similar to a regular cellular telephone in layout and/or function. “Low radiation” refers to a radiation level below that typically used by a cellular telephone communicating with a cellular tower and/or cellular network (particularly when the cellular telephone is indoors or far from a cellular tower). For example, in some embodiments, low radiation may be less than about 0.2 SAR, in other embodiments less than about 0.1 SAR and in other embodiments less than about 0.05 SAR (1.6 Watts/kilogram standard). Larger or smaller radiation levels may be used.

In one or more embodiments, the LR handset communicates through a cellular telephone a short distance from the LR handset (e.g., in the same room, building, office, apartment or house). For example, a user may use the LR handset to place calls, receive calls, send text messages, surf the WEB or perform any traditional cellular telephone activities by tethering to, piggy-backing off of or otherwise employing the cellular telephone to communicate with a cellular network. The LR handset only requires enough signal strength to communicate with the cellular telephone (or a portion of the cellular telephone as described below) which may be placed a short distance from the user (e.g., in the same room, office, house, across a yard or sports field, etc.). In this manner, the user is not directly exposed to the cellular telephone's more powerful radiation because the cellular telephone is not in direct contact with the user (e.g., in the user's hand, next to the user's head, against the user's waist, in the user's pocket, etc.). Rather, the cellular telephone may be remote from the user. In some embodiments, multiple LR handsets may communicate across a cellular network via a single cellular telephone.

As stated, in some embodiments, the LR handset may be similar (or nearly identical) to a traditional cellular telephone in look, size, functionality, or the like.

In some embodiments, a transmitter/receiver unit capable of communicating over a cellular network may be provided in place of a cellular telephone. An LR handset may then communicate through a cellular network via the transmitter/receiver unit (e.g., in place of or in addition to a cellular telephone). The transmitter/receiver unit may be located a distance from the user so that the user is not directly exposed to the transmitter/receiver unit's more powerful radiation. For example, the transmitter/receiver unit may be located outside of a user's home, office, car, in the same room, office, house, etc.

Use of a separate “cellular” unit (e.g., a portion of a cellular telephone, a transmitter/receiver unit, etc.) to communicate via the cellular network allows the LR handset to use less radiation, be smaller, lighter and cheaper, and to consume significantly less battery power. For example, the separate cellular unit may be plugged into an electrical outlet or otherwise receive line voltage. Furthermore, the cellular unit may employ larger or otherwise more effective antennas or even higher transmission power levels to improve cellular coverage. In some embodiments, the LR handset may employ WiFi, Bluetooth or a similar communications protocol to communicate with the separate “cellular” unit (e.g., allowing for easy use of multiple LR handsets, creating a cellular “hot spot”, or the like).

In some embodiments, a cellular telephone may be provided in which a portion of the cellular telephone that communicates with a cellular network such as the antenna and/or transmitter/receiver circuitry, referred to herein as “cellular portion”, is detachable yet still operable with the remainder of the cellular telephone (e.g., an LR handset or “user interface portion” when the cellular portion is removed). For example, the cellular portion may be detached from the cellular telephone and placed a short distance from the remainder of the cellular telephone such as at the edge of a desk, in the same room, in a different room, across an office, or the like, and the remaining LR handset (and/or user interface portion) may communicate with the cellular portion to access a cellular network.

In some embodiments, the cellular portion may be attached to a separate power supply (e.g., another battery, line voltage, etc.) than is used by the LR handset. The cellular portion may communicate with the LR handset wirelessly or via one or more wires. For example, the LR handset may communicate with the cellular portion via Bluetooth, WiFi, or the like.

FIG. 1 illustrates an exemplary cellular telephone 100 provided in accordance with an embodiment of the present invention. The cellular telephone 100 includes a display 102 which in some embodiments may also serve as a keyboard. In other embodiments, a separate keyboard may be provided. A first battery 104 is provided for powering a first local transceiver circuit and/or antenna 106 and a second battery 108 is provided for powering a second local transceiver circuit and/or antenna 110, as well as a cellular transceiver circuit and/or antenna 112. As will be described further below, the first and second local transceiver circuits and/or antennas 106 and 110, or similar communications circuitry, may function as “low radiation level” communications circuitry emitting lower levels of radiation than the portion of the cellular telephone 100 that communicates with a cellular network (e.g., cellular transceiver circuit/antenna 112 or another higher radiation level communications circuit). Additional circuitry (not shown) may be provided such as microprocessors, microcontrollers, memory, input/output circuitry, display driver circuitry, and/or any other similar circuitry suitable for use with a cellular telephone. Fewer or more batteries and/or other power sources may be employed.

With reference to FIG. 2A, when desired, the second battery 108, second local transceiver circuit/antenna 110, and the cellular transceiver circuit/antenna 112 may be removed (e.g., as a “cellular” unit 114) from the cellular telephone 100 and remain in communication with the cellular telephone 100 (e.g., via communication between the first and second local transceiver circuits 106 and 110 or similar circuitry). The remainder of the cellular telephone 100 without the cellular unit 114 may function as a user interface portion 115. The first and second local transceiver circuits 106 and 110 may communicate via a wireless or wired channel. In some embodiments, a wireless protocol such as Bluetooth, WiFi, or any other suitable protocol may be used for communication between the first and second local transceiver circuits 106 and 110. The cellular transceiver circuit/antenna 112 (or similar circuitry) may remain in communication with a cellular network, such as via a cell tower 116 in FIG. 2A.

In some embodiments, the power level used for communication between the local transceiver circuit/antennas 106 and 110 may be significantly less than the power level used for communication between the cellular transceiver circuit/antenna 112 and the cell tower 116. For example, in some embodiments, the power levels used by cellular transceiver circuit/antenna 112 may be up to 1.6 SAR or higher, whereas the power levels used by the local transceiver circuit/antenna 106 and/or 110 may be less than about 0.2 SAR, in other embodiments less than about 0.1 SAR and in other embodiments less than about 0.05 SAR (1.6 Watts/kilogram standard). Other power levels may be used for any of these circuits. In some embodiments, different communication frequencies also may be used.

In operation, a user of the cellular telephone 100 may detach the cellular unit 114 from the cellular telephone 100 and place the cellular unit 114 a distance from the user so as to limit exposure of the user to radiation from the cellular transceiver circuit/antenna 112 during use of the cellular telephone 100. In some embodiments, the cellular unit 114 may be connected to a supplemental power source such as an additional battery or line voltage. In this manner, battery life of the cellular telephone 100 may be extended and exposure of the user to radiation from the cellular transceiver circuit/antenna 112 may be reduced. For example, FIG. 2B illustrates a cellular unit 114 detached from user interface portion 115. The cellular portion 114 may include a foldable plug for connecting cellular unit 114 to an electrical outlet 118. In some embodiments, the cellular unit 114 may be attached to the user, such as at the user's waist if desired.

In some embodiments, the signal strength output by the cellular unit 114 may be increased when the cellular unit 114 is detached from the remainder of the cellular telephone 100. For instance, a switch, electrical contact or the like (not shown) may be provided that senses when the cellular unit 114 and interface portion 115 are not in contact. Thereafter the maximum power level of the electromagnetic radiation emitted from cellular unit 114 may be increased.

FIG. 3 illustrates an alternative embodiment of the present invention in which a cellular telephone 300 may automatically enter a low radiation mode to reduce exposure of a user 301 to radiation. With reference to FIG. 3, a cellular unit 302 is provided that may communicate with both the cellular telephone 300 via a low radiation (LR) communication device 304 and a cellular network (not separately shown) via a cell tower 306. In some embodiments, the LR communication device 304 may be a wireless router that employs WiFi or a similar wireless protocol, although other LR communication devices may be used (e.g., a communication device that uses Bluetooth or another wireless protocol). For example, the cellular unit 302 may plug into the LR communication device 304 via a CAT5 or similar cable, or communicate wirelessly with the LR communication device 304.

The cellular telephone 300 may include a mobile application or be otherwise configured to detect the presence of the cellular unit 302 when the cellular telephone 300 is within range of the LR communication device 304. In such instances, the cellular telephone 300 may enter a low radiation mode, such as an airplane mode, and stop communicating directly with the cell tower 306. For instance, the circuitry used to communicate with cellular towers may be disabled within the cellular telephone 300 while low radiation emitting communications circuitry such as WiFi, Bluetooth, or similar circuitry may remain active. The cellular telephone 300 may communicate with the cell tower 306 indirectly by communicating with the cellular unit 302 through the LR communication device 304. The higher radiation levels used to communicate with the cell tower 306 thereby may be remote from the user 301 and radiation exposure of the user 301 may be reduced relative to communications that occur directly between the cellular telephone 300 and the cell tower 306 (e.g., when the cell phone 300 is in contact or proximate the user 301 as shown).

In some embodiments, cellular units 302 may communicate directly with the cellular telephone 300 and cell tower 306 without use of the LR communication device 304 (e.g., via WiFi or a similar protocol). Cellular units 302 may be located wherever the user communicates on his/her cell phone often (e.g., at home, at an apartment, at an office, in a car, etc.). In each case, the cellular unit 302 may be located a distance from the user to reduce close range exposure of the user to radiation associated with communicating over a cellular network. In some embodiments, the cellular telephone 300 may automatically detect the presence of a cellular unit 302 and seamlessly switch to a low radiation mode (e.g., reducing radiation exposure of the user and extending battery life of the cellular telephone). In some embodiments, multiple cellular telephones may communicate over a cellular network via a cellular unit 302. For example, a cellular network may allow a multi-line or multi-party license or access to a cellular network via a cellular unit 302.

In one or more embodiments, the cellular unit 302 may employ a higher power level, larger antenna and/or better location for communicating with the cell tower 306 than would be possible for the cellular telephone 300, improving cellular reception.

Accordingly, while the present invention has been disclosed in connection with exemplary embodiments thereof, it should be understood that other embodiments may fall within the spirit and scope of the invention, as defined by the following claims.

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Patent Valuation

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28.0/100 Score

Market Attractiveness

It shows from an IP point of view how many competitors are active and innovations are made in the different technical fields of the company. On a company level, the market attractiveness is often also an indicator of how diversified a company is. Here we look into the commercial relevance of the market.

58.0/100 Score

Market Coverage

It shows the sizes of the market that is covered with the IP and in how many countries the IP guarantees protection. It reflects a market size that is potentially addressable with the invented technology/formulation with a legal protection which also includes a freedom to operate. Here we look into the size of the impacted market.

72.78/100 Score

Technology Quality

It shows the degree of innovation that can be derived from a company’s IP. Here we look into ease of detection, ability to design around and significance of the patented feature to the product/service.

26.0/100 Score

Assignee Score

It takes the R&D behavior of the company itself into account that results in IP. During the invention phase, larger companies are considered to assign a higher R&D budget on a certain technology field, these companies have a better influence on their market, on what is marketable and what might lead to a standard.

20.0/100 Score

Legal Score

It shows the legal strength of IP in terms of its degree of protecting effect. Here we look into claim scope, claim breadth, claim quality, stability and priority.

Citation

Patents Cited in This Cited by
Title Current Assignee Application Date Publication Date
Low radiation wireless communicator GOOGLE LLC 02 September 2009 04 March 2010
Context dependent computer operation MICROSOFT TECHNOLOGY LICENSING, LLC 06 December 2010 07 June 2012
Methods and apparatus for reducing cellular telephone radiation exposure DUGAN, BRIAN M. 31 May 2012 06 December 2012
Portable computing, communication and entertainment device with central processor carried in a detachable portable device KHYBER TECHNOLOGIES CORPORATION 05 June 2008 06 November 2008
Separable mobile device having a control module and a docking station module BLACKBERRY LIMITED 04 March 2011 06 September 2012
See full citation <>

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