Abstract: A portable communication device includes a status indictor in the form of a single multicolor generating LED. The single LED indicates radio channel and battery status. The LED is responsive to a menu button press to indicate a current channel by color. Channel change is indicated by changing to another color. The LED is also responsive to a power button on the portable communication device to generate predetermined colors associated with battery status. The use of a single LED eliminates the need for knobs or a display as part of the status indicator of the portable communication device.

Abstract: A method and system for managing Digital to Time Conversion (DTC) is provided. The method comprises receiving a first Radio Frequency (RF) signal and a second RF signal. The second RF signal is a phase-shifted first RF signal. The method further comprises converting the first RF signal to a first Intermediate Frequency (IF) signal and the second RF signal to a second IF signal. Further, a time delay between the first IF signal and the second IF signal is estimated based on a time difference measurement technique. The second RF signal is processed based on the estimated time delay to compensate for a delay error associated with the second RF signal.

Abstract: A means for determining a channel for communication in a wireless communication system is provided. A method includes receiving one or more sub-frames of a beacon signal on a beaconing channel until a legitimacy condition of the beacon signal is met. The beacon signal is transmitted by a beaconing device. The method further includes determining a suitability of the channel for communication in the wireless communication system based on the legitimacy condition.

Abstract: A dual-sided radio (100) for enhancing a user's experience is provided. The radio includes a primary transducer (110) on an audio-side of the radio that projects a primary sound, a secondary transducer (120) on a data-side of the radio that projects a mid-high frequency sound, a processor (160) that equalizes (200) audio to the primary transducer and the secondary transducer, and a communication module (130) that receives and transmits communication signals containing the audio. The secondary transducer supplements the primary sound with a mid-high frequency sound (404) to compensate for mid-high frequency loss of the primary sound due to diffraction (300).

Abstract: A system (100) and method (300) of using a context vector and database (202) for location applications can include a transceiver (104), a plurality of environmental sensors (114, 116, 118, 120, 121) including at least two location technology devices (110, 112), and a processor (102) coupled to the transceiver and the plurality of environmental sensors. The processor can be programmed to sense (302) an environmental condition for a given location, define (310) a context vector for the given location, detect (312) a context transition corresponding to a change in the environmental condition, and modify (314) an operation of the at least two location technology devices based on the context transition detected. The processor can be further programmed to form (320) a new context vector based on the context transition and attempt to match the new context vector with a pre-stored context vector.

Abstract: A method for delineating a metallization pattern in a layer of sputtered aluminum or sputtered copper using a broad spectrum high intensity light source. The metal is deposited on a polymeric substrate by sputtering, so that it has a porous nanostructure. An opaque mask that is a positive representation of the desired metallization pattern is then situated over the metallization layer, exposing those portions of the metallization layer intended to be removed. The masked metallization layer is then exposed to a rapid burst of high intensity visible light from an arc source sufficient to cause complete removal of the exposed portions of the metallization layer, exposing the underlying substrate and creating the delineated pattern.

Abstract: A wireless communication unit (101) for a radio communication system comprises a device token controller (403) which receives at least a first geographical radio resource token allocated to the wireless communication unit (101) by a radio resource token controller (117) of a network of the radio communication system. The first geographical radio resource token provides a first radio resource right allocation to the wireless communication unit (101) for a first geographical area. A radio resource manager (407) then determines a radio resource usage parameter in response to the first radio resource right allocation. Specifically, the radio resource manager (407) may only determine the radio resource usage parameter in response to the first radio resource right allocation if the location estimate is within the first geographical area. The radio communication system may be a heterogeneous communication system.

Abstract: Swivel clip (200) provides independently adjustable hinge point location (500), adjustable clip length (210) and rotational position for user-configurable attachment. Swivel clip (200) is formed of a two piece paddle (216/218) and a two piece swivel plate (246, 248) coupled via a hinge pin (502). The two piece paddle (216/218) provides adjustable clip length. The two piece swivel plate provides linear adjustment and rotational adjustment of the hinge point location (500) through the use of a hinge plate (246) and swivel plate (248).

Abstract: A method for use in a digital communications receiver for controlling an input signal level (200) into an analog-to-digital converter (ADC) initially receives a sample sequence (201) where a threshold crossing rate is measured as a percentage samples of an input signal that exceed the threshold (203). The error between the measured threshold crossing rate and a desired reference threshold crossing rate is calculated (205) and an error signal is then utilized in a feedback loop to control the receiver gain such that the error is reduced (207).

Abstract: A method, wireless device, and information processing system dynamically update spectrum sensing groups in a wireless communication system. A set of wireless devices (114) currently allocated to a spectrum sensing group is identified. Each wireless device (114, 116, 118) in the set performs spectrum sensing on one or more wireless communication channels. Spectrum sensing performance data (144) is analyzed for each such wireless device (114) in the set. The spectrum sensing performance data (144) indicates wireless communication performance of a wireless device (114) associated with the spectrum sensing performance data with respect to detecting a transmitted signal on the one or more communication channels. Wireless device membership of the set of wireless devices (114, 116, 118) allocated to the spectrum sensing group is dynamically adjusted based on the analysis.

Abstract: A vehicular adapter (100) provides an interface to accommodate a variety of contacts located on different surfaces of a portable radio (200). The vehicular adapter includes a rotating pocket (116), pivot arms (136, 150, 152) and a locking mechanism (126). The rotating pocket (116) provides a first set of contacts (124). One pivot arm (136) provides an antenna probe (120) on one surface of the vehicular adapter while another pivot arm (152) provides connector side contacts (122) to a side surface of the vehicular adapter. The pivot arms (136, 150, 152) pivot in response to the rotating pocket (116) being rotated thereby moving their respective contacts into position for mating with the portable radio (200).

Abstract: A battery pack (200) includes a power limiting apparatus (230) comprising a power limiting resistor (232) in series with an overcurrent protection device (234). A switch (236) under the control of a data line (202) is placed in parallel with the series coupled power limiting resistor (232) and overcurrent protection device (234). When the switch (236) is enabled via the data line (202), current limiting is provided via the switch and a fuse. When the switch (236) is disabled via the data line (202) current limiting is provided via the overcurrent protection device (234) which limits the maximum battery system current.

Abstract: A method and apparatus for accounting for responders at a site, includes obtaining a first RFID from a scanning of a responder radio performed in a vicinity of the site; determining, by using the first RFID, a responder identity from a RFID database that associates each one of a plurality of responder identities to a corresponding responder radio RFID; adding at least one of the responder identity and the first RFID to an active responder database for the site; initiating an acknowledgement to the responder radio; obtaining a second RFID as a result of a second scanning; and removing the responder identity from the active responder database when the second RFID matches the first RFID.

Abstract: A radio communication system (100) provides a radio air interface at a master node (102) for subscriber units associated with the master node. Among the subscriber units are several slave nodes (104, 106). The communication system has the ability to operate as a secondary user in unused spectrum portions of a frequency band otherwise reserved for primary operators, such as licensed broadcasters. The master node accesses an authorization server (108) to obtain a list of unused channels in the region of the master node. Each slave node also contacts the authorization server to obtain a list of unused channels in the region where each respective slave node is located, via another network (118, 121). The unused channels common to the slave nodes and the master node are used to create a backup radio operating parameter list which is used by the master node if a fault occurs between the master node the authorization server.

Abstract: A method, system and apparatus for managing communication in a Public Safety Communication Network (PSCN). The PSCN includes a plurality of Mobile Stations (MSs) (110, 115, 120) and a master controller (105). The method includes initiating a communication between one or more MSs and the master controller using a primary channel (405). The primary channel corresponds to a primary frequency spectrum in the PSCN. The method further includes identifying one or more available channels in one or more of the primary frequency spectrum and a secondary frequency spectrum (410). Each of the primary frequency spectrum and the secondary frequency spectrum include one or more channels. Thereafter, a channel hopping pattern is generated for one or more MSs based on one or more available channels (415). The channel hopping pattern corresponds to a sequence of frequency hops for a MS.

Abstract: Method and apparatus of increasing location accuracy of an inertial navigational device is described. The inertial navigation device generates real-time data and transmits the real-time data to a second device so that the second device may obtain a location of the inertial navigational device. The inertial navigational device receives an update message from the second device, wherein the update message is created at the second device based on a comparison of the real-time data generated by the inertial navigational device against a magnetic field database and adjusts the depicted location of the inertial navigational device based on the update message in order to increase the location accuracy of the inertial navigational device.

Abstract: A method (500) and system (100) of sensing the position of an audio accessory (102) having at least a microphone (103) can include a sensor (104 and/or 106) for detecting one among a plurality of positions of the audio accessory and a processor (118) programmed to equalize an audio input from the microphone based on which one among the plurality of positions was detected. The sensor can be a thermal sensor, an optical sensor, or a proximity sensor. The audio accessory can be a remote speaker/microphone accessory. Among the plurality of positions that can be detected can include a Mouth Reference Point (MRP) or a Shoulder position. The processor can be further programmed to automatically equalize (508) a microphone input audio based on one of the plurality of positions detected. The system can also be programmed to automatically equalize (512) when a push-to-talk activation occurs at the audio accessory.

Abstract: A mobile station (104) operates in a region where an incumbent operator (110) is transmitting. The secondary station transmits at a frequency similar to that of the incumbent operator's signal. The incumbent operator transmits using a particular polarization (113). To reduce interference, the secondary station selects one of a plurality of antennas of the secondary station which has a low matching polarization with that of the incumbent signal.

Abstract: An antenna and methods for manufacturing the antenna is provided. The antenna (100) includes an electrically non-conductive substrate (102). The antenna further includes an electrically conductive strip (104). The electrically conductive strip (104) is wound around the electrically non-conductive substrate (102) so as to form an overlap (120) between adjacent turns of the electrically conductive strip (104), without creating a galvanic connection at the overlap.

Abstract: A CMOS low-noise wide-band amplifier (LNA) 211 is provided. The LNA can include a Gm doubler 410, a source follower 420, and a coupling circuit (430/440) that couples a differential input to the Gm doubler with the source follower for achieving high linearity over a wide frequency range at a low supply voltage. The coupling circuit can capacitively couple (434/444) a differential input to a gate of the source follower. The gate can be biased to a supply voltage through variable resistors (436/446). A cross coupler (480) can be included in a push-pull buffer (450) for additional gain and for allowing the source follower to drive a low impedance load at low power.