Abstract: A method for call setup in an asynchronous frequency hopping digital two-way communication system includes transmitting in adjacent time slots, by a caller device, a preamble slot over a first unique fixed frequency selected from a frequency hopset and a synchronization slot over a second unique fixed frequency selected from the frequency hopset. Further, the method includes one or more target devices transmitting an acknowledgement signal upon receiving the preamble slot over the first unique fixed frequency and the synchronization slot over the second unique fixed frequency, and followed by the caller device establishing the data communication link between the caller device and the one or more target devices over at least one random frequency selected from the frequency hopset, in response to receiving the acknowledgement signal from the one or more target devices.

Abstract: A wide-angle camera will collect wide-angle images. A portion of the wide-angle image (desired field of view) will be selected based on accelerometer readings. More particularly, to keep the desired field of view of a camera in an appropriate position, a correction is made to the tilt and roll of the desired field of view by using motion sensors to determine the horizon based on measuring the direction of gravity. A correction is also made to the yaw of the desired field of view using motion sensors to determine a forward facing position when the user is in motion. Because the desired field of view is corrected for variations resulting from user activity, any image collected from the camera is more likely to be pointed at a desired position.

Abstract: A charger provides a user selectable interface which allows a battery operated portable communication device to be charged in either face-up or face-down positions. Both single-unit charger and multi-unit charger embodiments are provided. A dual contact scheme allows for the user to select either the face-up or face-down configuration. The face-down configuration accommodates battery powered portable communication devices having accessories as well as radio back housings of varying thickness. Additional storage bins are configured within the charging systems to further improve organization of multiple accessories. Magnetic coupling is also provided to facilitate organization of two or more single-unit chargers.

Abstract: A method and a system for managing an electronic calendar. The method can include, in a calendar management system linked to a decision management system, associating a first calendar event with at least a first decision. In the calendar management system, prioritization information pertaining to the first decision can be collected. The prioritization information can indicate a decision type for the first decision and a value at risk in the first decision. A first calendar entry corresponding to the first calendar event, as well as the prioritization information pertaining to the first decision, can be presented to a user via a display of an electronic system.

Abstract: A method of retaining channel use by a secondary system is described. A secondary channel used during periods of normal communication between a secondary transmitter and receiver is split into sub-bands for use during a quiet period containing quiet phases. During the quiet period, while the transmitter communicates with the receiver on one sub-band, the receiver simultaneously senses for incumbent devices on another sub-band, as well as vice-versa. Transmission and sensing do not occur simultaneously on the same sub-band and transmission is limited to only one of the sub-bands. Transmission and sensing are performed by both the transmitter and the receiver on every sub-band over the course of the quiet period. The locations of secondary receivers are determined and employed during scheduling such that devices sufficiently separated from each other transmit during different quiet phases and transmit and sense in sub-bands separated by another sub-band.

Abstract: A user wearable accessory provides push-to-tall (PTT), microphone and adjustable electrical cord length features in a single device. First and second adjustable electrical cords couple a portable communication device to an earpiece. The accessory is formed of front and back housing portions coupled together to provide a spooling feature therebetween. The spooling feature accommodates the two electrical cords such that a user is able to wrap each cord to provide an overall desired length. Users of different heights can adjust the cord length as desired thereby minimizing tangling of the cords.

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 communication server implements a method that minimizes bandwidth usage between a media device and the communication server in a communication system where separate session and floor control protocols are used. Where multiple clients have established separate sessions to access a media source at a media device and upon determining that the multiple clients are attempting to access the same media source, the communication server implements floor control logic to tie multiple floor arbiters together across the separate sessions to cause a single media stream to be sent from the media source and received at the communication server for distribution to the clients, thereby minimizing the bandwidth on the uplink between the media device and the communication server.

Abstract: A method to control a multimedia broadcast multicast service (MBMS) mode of a MBMS session in a communication system is provided herein. In operation, a first network element that is located outside a radio access network determines to use one of a single frequency network MBMS mode and a single cell MBMS mode for the MBMS session based on a property of the MBMS session. The first network element then transmits a session control signaling message to a second network element that is located inside the radio access network. The session control signaling message instructs the second network element that user plane data for the MBMS session shall be transmitted using the determined MBMS mode. The base stations then transmit the user plane data to one or user equipments in a target service area according to the determined MBMS mode.

Abstract: Barcodes stored by mobile devices can be used in commerce. In sending barcode data optically from a display backlight of a mobile communication device to a barcode scanner optical receiver, the transmitted data bit time needs to be compatible with the frequency range the barcode scanner is designed to receive. The disclosed methods and mobile devices can send barcode data optically at different frequencies from a modulated display backlight to different models/makes of laser barcode scanners that may be used at a point of sale (POS). The disclosed are methods and devices for processing the bit time mix choices make a determination of bit time mix choices based upon predetermined criteria. Location of the device is an example of predetermined criteria. A location may have a particular bit time mix signature that may be accessed, for example, in a look up table.

Abstract: A method for interrupting voice transmissions within a multi site communication system includes operating a repeater to engage in an interruptible voice communication; to identify an open burst location based on a repeat delay when the interruptible voice communication is sourced directly via a wireless network, and to identify the open burst location as irrelevant when the interruptible voice communication is indirectly sourced via a wireless network; and repeat the interruptible voice communication including the open burst location.

Abstract: An electronic device having a user interface on which selectable operation indicators are navigated wherein each operational indicator is associated with a corresponding application or other selectable item. The operational indicators are sequentially identified, in a specified order and for a specified time interval, in response to a first input at the user interface. Selection occurs in response to a second input at the user interface during the corresponding time interval.

Abstract: Embodiments include systems and methods for controlling radiation of radio frequency (RF) energy by a wireless communication device that includes a transmitter, an antenna, a vector field sensor, and a processing system. The transmitter produces an analog RF signal, and the antenna radiates the analog RF signal into an environment. The vector field sensor senses an intensity of a vector field resulting from the analog RF signal radiated by at least the antenna (and possibly other portions of the device). The processing system determines whether a value representing the intensity is greater than a first threshold, and when the value is greater than the first threshold, the processing system causes the radiated RF energy produced by the wireless communication device to be decreased.

Abstract: A method, a mobile system, and a mobility management entity are disclosed. A transceiver 302 may receive a mobility message element 750 from a mobility management entity 502. A processor 304 may use the mobility message element 750 and the transceiver 302 to establish a home data packet bearer 604 with a core packet data network gateway 506 having a data tunnel 606 to a local packet data network gateway 510 of the home network 108. A data storage 308 may associate the home data packet bearer 604 with the home network 108.

Abstract: A method for minimizing undesired signal coupling from digital interface between peripherals is presented. The method includes transmitting over the interface first and second signals having a parameter ?k set by a dynamic sequencer respectively to a first and second value ?1 and ?2, receiving the first and second signal and generating a first and second interference metric respectively for the first and second signal. The first and second interference metrics are correlated to generate a final parameter value ?f, and a transmitter is then configured to transmit a third signal over the interface with the final parameter value ?f.

Abstract: A method for reducing howling in a communication system containing collocated mobile devices is presented. In a transmitter, an audio signal is received at a microphone. Acoustic feedback is removed from the audio signal and the resulting signal is encoded and transmitted either using direct or trunked mode operation to a receiver. The encoded signal is decoded at the transmitter, in addition to at the receiver, and fed back to an echo canceller with sufficient delay to account for substantially the entirety of a loop delay from encoding of the audio signal to reception of the acoustic feedback at the microphone to enable removal of the acoustic feedback. An estimate of the acoustic feedback is used to initially remove the acoustic feedback, the error being fed back to the processor to adaptively change the signal being subtracted from the audio signal to better reduce the acoustic feedback.

Abstract: A method (100) includes receiving (101) an input digital audio signal comprising a narrow-band signal. The input digital audio signal is processed (102) to generate a processed digital audio signal. An estimate of the high-band energy level corresponding to the input digital audio signal is determined (103). Modification of the estimated high-band energy level is done based on an estimation accuracy and/or narrow-band signal characteristics (104). A high-band digital audio signal is generated based on the modified estimate of the high-band energy level and an estimated high-band spectrum corresponding to the modified estimate of the high-band energy level (105).

Abstract: A method (100) includes receiving (101) an input digital audio signal comprising a narrow-band signal. The input digital audio signal is processed (102) to generate a processed digital audio signal. An estimate of the high-band energy level corresponding to the input digital audio signal is determined (103). Modification of the estimated high-band energy level is done based on an estimation accuracy and/or narrow-band signal characteristics (104). A high-band digital audio signal is generated based on the modified estimate of the high-band energy level and an estimated high-band spectrum corresponding to the modified estimate of the high-band energy level (105).

Abstract: A method and apparatus for providing channel feedback is provided herein. During operation a covariance matrix at time t (R) is calculated as a function of a received downlink signal. Matrix Ct is also calculated and is based on a previous quantized covariance matrix (Rqt-1), the covariance matrix (R) at time t, and a forgetting factor (?) that is applied to Rqt-1. The Ct is then used to create a DERC feedback message (signal or waveform) and may be transmitted with pilots on a proper feedback channel to a base unit. The base unit receives the feedback (Ct) as a DERC waveform on a proper feedback channel. The base unit uses non-coherent or coherent detection to detect the DERC values send by the remote unit and uses the DERC values with a previous quantized covariance matrix estimate, a forgetting factor, and a weighting value to compute a covariance matrix estimate to use for beamforming.

Abstract: Embodiments include antenna tuning systems and methods of tuning an antenna of a wireless device with an antenna, a circuit with at least one tunable component, and a processing system. The processing system determines tuning selection inputs during a communication session. Based on the tuning selection inputs, the processing system determines one or more component values for one or more tunable components. In an embodiment, the component value(s) are determined from a set of pre-defined component values. The tunable component(s) are controlled to have the determined component value(s). The circuit may be an impedance matching circuit that includes at least one tunable reactive component. Alternatively, the circuit may be an antenna tuning circuit that includes at least one variable component. In an embodiment, both an impedance matching circuit and an antenna tuning circuit may be implemented, with each type of circuit having one or more tunable components.