Abstract: Various example embodiments are disclosed relating to wireless networks, such as relating to techniques to improve coverage of push-to-talk wireless networks or services. In an example embodiment, a technique may include forwarding data to a remote push-to-talk (PTT) wireless network via an intermediary device of an intermediary wireless network if the data is received from a wireless device of a local push-to-talk (PTT) wireless network, forwarding data directly to one or more wireless devices of the local PTT wireless network if the data is received from the remote PTT wireless network via the intermediary device, and forwarding data to one or more wireless devices of the local PTT wireless network and to the remote PTT wireless network via the intermediary device of the intermediary wireless network if the data is generated locally.

Abstract: A method an system for establishing a multi-user communication session, having a session description, between terminals with incompatible media characteristics, in which users with terminals having incompatible media characteristics are invited to participate in the communication session. A transcoding session is set up for enabling transcoding between the incompatible media characteristics of the terminals based on information about the terminals of the users having accepted the invitation, this information comprising the media characteristics of the users' terminals. The session description is established according to the transcoding session and, during the communication session, media streams from the terminal of one user are transcoded according to the transcoding session and the transcoded media streams are transmitted according to the session description to the other users participating in the communication session, using the media characteristics of the terminals of those other users.

Abstract: A method and system for enhancing speech intelligibility using wireless communication in portable, battery-powered and entirely user-supportable devices. The devices may be talker devices and receiver devices, where the audio signals input into the talker devices may be transmitted to the receiver devices to provide better quality audio to person using the receiver devices. The receiver devices may initiate and terminate communications with the talker devices. Additionally, the receiver devices may indicate to the talker devices the gain level the talker devices need to apply to the audio signals before sending them to the receiver devices.

Abstract: A method (500) for dynamically creating a communication group. The method can include identifying a first contact (100) and automatically identifying a plurality of contacts (110, 120, 130, 140, 150) within a number (N) of levels removed from the first contact. The first contact can be included as one of the plurality of contacts or excluded from such plurality of contacts. The method further can include selecting at least a portion of the identified contacts to include within the communication group. Identifying the first contact can include processing an image that includes first contact. In another arrangement, a selection of the first contact from a contact list can be received. In yet another arrangement, a selection of the first contact from a recent call list can be received.

Abstract: A system and method for automatically managing resource usage of a network device based on device location. In an illustrative embodiment, the system includes a first module that is coupled to a network device. The first module provides position information associated with the network device. A controller communicates with the first module; receives the position information; and generates a control signal in response thereto based on predetermined network information. A second module that is coupled to the network device incorporates instructions to adjust the resource usage of the network device upon receipt of the control signal. In a more specific embodiment, the first module includes a Global Positioning System (GPS) receiver. The predetermined network information includes network coverage area. The resource usage includes power usage. The second module includes instructions for turning off a receiver, which is coupled to the first module, based on the control signal.

Abstract: A communication system provides for an informing of participants in a Push-to-Talk over Cellular (PoC) communication session that the session is being recorded by a recording device, for a storage, by the recording device, of media that conveyed during the session, and for a subsequent retrieval of the stored media from the recording device. In various embodiments of the invention, a host of the communication session is permitted to determine whether or not the recording device is permitted access to the communication session, and the other participants in the session are able to determine whether to remain in the session when the recording device is permitted access. A user of an MS on behalf of whom the recording device is participating is then able to retrieve the stored media along with information identifying a source of the media and a time associated with the storage of the media.

Abstract: A mobile collaborative community system provides distribution of shared data (e.g., media, preference, calendar, contacts, tasks, etc.) for a group of individuals (e.g., families, business organization, team, project, etc.) to the mobile devices of the group members. The system maintains a central repository or database of shared data for groups, as well as information defining the groups, user membership in the groups, and the mobile devices associated with the users. The system distributes the shared data for a group to the mobile devices of the user who are members of the group. The users can make changes to shared group data on their mobile devices, which changes are returned to the central repository and re-distributed to update the shared data on the mobile devices of all group members.

Abstract: Methods and apparatus providing intelligent interface selection for legacy and non-legacy applications. The method includes intercepting a networking function call from an application desiring radio access, selecting a radio from a plurality of candidate radios based on selection criteria, and binding the radio to the application. To facilitate flow mobility, the method includes allocating an ephemeral port to the radio, generating a flow binding rule based only on the ephemeral port, and signaling the flow binding rule to a home agent.

Abstract: Embodiments are directed to interfacing a multimedia application being executed on a handset with an independent computing device. A connection between the handset and the computing device is established, which triggers a proxy application to be launched on the computing device. The proxy application is configured to interact with an agent application that runs on the handset. The computing device receives one or more user inputs associated with the multimedia application, and one or more messages are sent from the proxy application to the agent application based on the user inputs. The handset modifies the execution of the multimedia application based in part on the one or more messages conveyed to the agent application from the handset, and the handset also sends media and/or signaling related to the multimedia application to the computing device.

Abstract: A LTE compliant RF transceiver includes at least one transmit path and at least two receive paths. A switching arrangement connected between a transmit PLL synthesizer and at least one transmit path as well as between a receive PLL synthesizer and at least two receive paths allows the transmit PLL synthesizer to selectively be connected to the receive side of the transceiver as well as the receive PLL synthesizer to selectively be connected to the transmit side of the transceiver, thereby considerably increasing flexibility of the RF transceiver which enables both speed-up of handover procedures and power savings. A modem including the transceiver is also provided.

Abstract: A method of establishing a one-way communication session from a first device to a second device includes transmitting initiation data to the second device to establish the one-way communication session, transmitting communication data to the second device, and terminating the one-way communication session. The initiation data causes the second device to receive the communication data and prevents the second device from transmitting communication data to the first device until after the one-way communication session has been terminated.

Abstract: An embodiment of the present invention discloses a method for revoking a talk burst, which includes: entering a pending release state by a talk burst after a client having the talk burst releases the talk burst initiatively; monitoring a duration of the talk burst in the pending release state; and revoking the talk burst when the duration of the talk burst in the pending release state exceeds a preset duration. An embodiment also discloses an apparatus for revoking a talk burst. By applying certain embodiments of the present invention, after a client initiatively releases a talk burst so that the talk burst enters a pending release state, the talk burst can be revoked in time and the waiting time of the client is saved.

Abstract: An embodiment includes a method that includes receiving data through a non-voice input. The method also includes translating the data into one or more numeric values. The method includes encoding the one or more numeric values into an audio stream, wherein the audio stream is to be transmitted over a transmission medium that is in use for voice communication.

Abstract: An antenna element includes a feeding path unit connected to a feeding point, first and second antenna main body units, and first and second short-circuit path units. The first antenna main body unit has one end connected to the feeding path unit and the other end that is opened. The second antenna main body unit has one end connected to a connection point between the feeding path unit and the first antenna main body unit and the other end that is opened. The first short-circuit path unit contributes to a resonance to a radio signal in a predetermined first frequency band, and is formed between the connection point and a ground point. The second short-circuit path unit contributes to a resonance to a radio signal in a second frequency band higher than the first frequency band, and has a path length different from that of the first short-circuit path unit.

Abstract: When half-duplex many-to-many communication is performed among a plurality of mobile stations having different codecs in a single group, transcoding is performed with a small number of codec circuits. A transcoder manages an SSRC of a received RTP packet, detaches voice information from a jitter buffer, which is identical to a latest SSRC, and inputs the detached voice information to a codec circuit. As the latest SSRC is switched, a voice sending station subject to transcode is switched, and mobile stations using the same codec share the codec circuit. Therefore, in a half-duplex many-to-many communication (group communication) system, called a professional mobile radio system, push-talk, or press-talk, it is not necessary to switch the transcoder until a radio station which takes a talk burst is changed during a single call (call session).

Abstract: A user equipment (UE), method and system for controlling a simultaneous session are discussed. According to an embodiment, the system includes a UE to transmit a SIP message including simultaneous sessions support (SSS) setting information associated with the UE to a home network including a server; and the server to store the SSS setting information therein, and to set a session operation mode of the server for a simultaneous session of the UE based on, in part, the SSS setting information.

Abstract: Exemplary techniques for sending data packages, such as media objects, during group communication sessions between wireless telecommunication devices, such as push-to-talk communication sessions, are disclosed. In one embodiment, the data packages, such as discrete data packages, are queued at the transmitting wireless communication device and then sent to other group members upon establishment of channels for group communications to the group members. The data packages can also be queued at the group communication server prior to being sent to a target device.

Abstract: An accessory for electronic equipment includes an interface for exchanging data between the accessory and the electronic equipment, and a voice over internet protocol (VOIP) circuit. The VoIP circuit is operatively configured to implement at least a portion of VoIP in the electronic equipment or the accessory.

Abstract: A wireless subscriber terminal (ST) for use with IP push-to-talk (PP2T) service using a wireless local area network (WLAN) operating in a plurality of modes, including a mobile terminal having an ability to communicate over the air to a wireless Access Point (AP), the mobile terminal further programmable to use conventional WLAN protocols, and a method for operating the wireless terminal are described.

Abstract: The present disclosure teaches an active antenna array for a mobile communications network. The active antenna array comprises a plurality of first polarisation antenna elements and a plurality of second polarisation antenna elements. The plurality of first polarisation antenna elements is connected to a first protocol signal generator. The plurality of first polarisation antenna elements are adapted to radiate an individual first protocol transmit signal. An individual one of the plurality of second polarisation antenna element is connected to an individual one of a plurality of second protocol signal generators. The plurality of second polarisation antenna elements is adapted to radiate an individual second protocol transmit signal. An individual one of the plurality of first polarisation antenna elements and the individual one of the plurality of second polarisation antenna elements are adapted to receive both, an individual first protocol receive signal and an individual second protocol receive signal.

Abstract: The present disclosure relates to an active antenna array for a mobile communications network. The active antenna array comprises a plurality of antenna elements, at least one first conductive sheet and at least one second conductive sheet. The plurality of antenna elements terminates at least one relay path. The at least one first conductive sheet comprises at least a portion of the at least one relay path. The at least one second conductive sheet comprises at least one DC voltage path and is at least partially disposed over the first conductive sheet. The present disclosure teaches an implementation of the active antenna array using a (single) multilayer printed circuit board (PCB).

Abstract: The current invention is a Capacity Planning Tool for the Web. This tool is developed and integrated to be within an Internet browser tool. The tool is used as an XML markup language for describing multimedia presentations. It can be used to examine the capacity of the server and network to transmit the entire requested multimedia document smoothly without interruptions. Also, the system can be utilized as part of an interactive e-learning tool for Web page development.

Abstract: A chain-shaped foldable cellphone capable of expanding functions and changing shape during usage comprises a mainframe module, a display module, more than one dual-spindle connecting block and an expansible module or an extensive module, wherein the extensive module is a complementary connector of the expansible module, and the neighboring ends of the two modules can be connected mutually while the distant ends thereof can be connected to one of the spindles of one dual-spindle connecting block respectively; by using the pivotal connection of the dual-spindle connecting block, the mainframe module is pivotally connected to the display module, and a plurality of extensive module and expansible module of various functions can be further pivotally connected to construct a chain-shaped foldable cellphone.

Abstract: A PTT bridging gateway between a first PTT system and a second disparate PTT system: receives an invitation to a first client to join a first group call for a first group comprising multiple member clients on the first PTT system, wherein the first client is one of the member clients of the first group; determines that the first client is mapped to a second group comprising multiple member clients on the second PTT system; and initiates a second group call to the multiple member clients on the second PTT system.

Abstract: A method and system for dividing a signal push-to-talk-over-cellular (PoC) group session are provided. The method includes requesting, at a PoC client, session division to a participating PoC function (PF) of a PoC server that manages a PoC session to which the PoC client belongs; requesting, at the PF of the PoC server, the session division to a controlling PoC function (CF) of a PoC server; transmitting, at the CF of the PoC server, information necessary for a new PoC session to at least one PoC client that desires to participate in the new PoC session while requesting the session division; and connecting, at the PoC client which is to participate in the new PoC session, to a CF of a PoC server which manages the new PoC session through a CF of an existing PoC server to thereby participate in the new PoC session.

Abstract: The present invention relates to a radio with a key and knob combination. To solve problems such as inconvenience caused by the independent PTT key and volume control knob on the traditional radios, the present invention provides a radio with a key and knob combination, comprising a PPT key unit and a volume control unit, wherein the key is installed inside a central cavity of the knob, which is a hollow knob, to form the key and knob combination. Rotation of the knob (106) may drive the shaft (102) and the toggle piece (111) to rotate synchronously, and then toggle the volume switch (112), while the pressed key (101) may cause the shaft (102) moving axially to toggle the PTT switch (103). When operating the radio with a single hand, users can both press the PTT key to initiate a call and rotate the knob to adjust the volume level by a thumb or a forefinger, and the operation is very convenient.

Abstract: Electronic devices are provided that contain wireless communications circuitry. The wireless communications circuitry may include radio-frequency transceiver circuitry and antenna structures. A parallel-fed loop antenna may be formed from portions of an electronic device bezel and a ground plane. The antenna may operate in multiple communications bands. An impedance matching circuit for the antenna may be formed from a parallel-connected inductive element and a series-connected capacitive element. The bezel may surround a peripheral portion of a display that is mounted to the front of an electronic device. The bezel may contain a gap. Antenna feed terminals for the antenna may be located on opposing sides of the gap. The inductive element may bridge the gap and the antenna feed terminals. The capacitive element may be connected in series between one of the antenna feed terminals and a conductor in a transmission line located between the transceiver circuitry and the antenna.

Abstract: An electronic apparatus includes: a housing having an internal space formed by top, bottom and side plates; and a power-source housing section formed next to a part of the side plate in the internal space and having a plate wall shaped such that a part adjacent to the side plate is near the side plate on one side and is away from the side plate on the other side in a direction connecting the top plate with the bottom plate. The apparatus further includes: a power-source block having an outer wall-surface whose shape conforms to the plate wall and housed in the power-source housing section; an antenna disposed in a space between the side plate and the plate wall; and a circuit board disposed in the internal space and mounted with an electronic circuit that operates based on power supplied from the power-source block housed in the power-source housing section.

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: Embodiments and methods and means for filtering radio frequencies (RF) via coaxial cables with a computer system are provided. Such embodiments generally include modifying an RF coaxial cables communicatively coupling an antenna to a wireless radio module within a mobile computing device allow an RF signal within certain frequency band(s) to pass with minimal attenuation while other frequencies, the RF signal is either reflected or attenuated. Modifying the RF coaxial cable entails inserting sections of varied impedance into the uniform impedance of the RF coaxial cable by altering the mechanical structure of the RF coaxial cable.

Abstract: A multi-camp mobile communication device (100) includes a first radio modem (102) and a second radio modem (104). Each modem is designed to communicate with a respective communication system (110, 112). Upon engaging in an interconnect call (204) over the first modem with the first communication system, the multi-camp mobile communication device receives a dispatch call at the second modem (206) from the second communication system. The multi-camp mobile communication device replies to the dispatch call with a pre-recorded message (208). The dispatch calling party may respond to the pre-recorded message with a voice message that is recorded by the multi-camp mobile communication device (210, 212).

Abstract: Terminals 1 and 2-1 to 2-n refer to information on the state of the terminals 1 and 2-1 to 2-n and a user to add functions for modifying the operation of the terminal and processing data thereby allowing the operation of the terminal to be modified, and the communication data to be processed, when the state information is in a specific condition. A server 3 accesses the information on the state of the terminals 1 and 2-1 to 2-n and the user on the side of the server 3, extracts terminal group information under a specific condition, generates a new group, and adds a presence linking function for performing registration with a group management function, thereby allowing the above state information to be used to generate a dynamic group.

Abstract: A method of sending a communication to a Participant in a PoC Group Session. A PoC client sends a SIP REFER message to a PoC participating Server, which forwards it to a PoC Controlling Server. The SIP REFER message comprises an identity of a target Participant in the Group Session and a message content. The PoC Controlling Server creates a SIP MESSAGE method, the MESSAGE addressed to the target Participant and including the message content. The SIP MESSAGE is then sent to a target Participating Server that serves the target Participant. In this way, the PoC client can send private message content via the PoC Controlling Server to another Participant in a PoC Group Session without sending it to all Participants.

Abstract: At present a number of frequency bands in the region of 450, 950, 900, 1700, 1800, 1900 and 2100 MHz are utilised for cellular and mobile communications, additional bands are under consideration for future expansion of such wireless communication systems. Recently, placing UMTS signals into existing GSM spectrum has received increasing levels of interest. The present invention is directed to systems and methods of combining GSM and UTMS signals in a shared methodology that offers good isolation. A number of different combiner structures are disclosed, the various combiner types each utilise differing transmitter ports topologies to effect the placement of UTMS signals within the existing GSM spectrum and vice versa.

Abstract: A system and method for performing proximity-based communications through dynamic communication device registration is presented. Uniquely identified mobile communication devices are registered with a Service provider notice server. Subscribers of the mobile communications devices configure descriptive parameters, a localized physical coverage area, contact information and privacy preferences. Subscriber groups of subscriber mobile communications devices with matching descriptive parameters are formed. Subscriber group information for a plurality of the mobile communication devices within the localized physical coverage area is provided. Subscribers send a request to communicate with at least one other subscriber in a matching subscriber group.

Abstract: A remote control-based data sharing system and method for handheld terminals over a communication network are provided. The data sharing system includes a master terminal that transmits a control assignment request and displays a screen image received in response to the control assignment request; a slave terminal that selectively assigns a control to the master terminal in response to the control assignment request and operates in accordance with a control signal received from the master terminal; and a network that establishes wireless communication channels with the master and slave terminals for exchanging signals between the master and slave terminals.

Abstract: Disclosed herein is a wireless power transmission/reception apparatus and method having a communication function. The wireless power transmission/reception apparatus includes a wireless power transmission device and wireless power transmission devices. The wireless power transmission device receives a returned wireless power signal, detects the number of power consumption devices, modulates pieces of ID data, each including ID of a corresponding power consumption device, transmits the modulated ID data, receives returned ID data, and determines suitableness of the power consumption devices. Each of the wireless power reception devices returns a remaining wireless power signal which is not received among wireless power signals from the wireless power transmission device, and temporarily stops a power consumption device when an ID of the received ID data is an ID of a power consumption device connected thereto, thus returning ID data which will be subsequently received to the wireless power transmission device.

Abstract: Systems and methods for facilitating dispatch communications are provided. Buttons related to dispatch communications can be displayed when dispatch call addresses are received by a mobile station. Additionally, selection menus with options related to dispatch communications can be displayed in a call history display when a dispatch communication is selected. When a contact with a dispatch communication address is selected, a selection menu with options related to dispatch communications can be displayed.

Abstract: A mobile communication device includes a side key having at least three buttons disposed on the side of a device body. Each button of the side key has at least two functions assigned differently and independently according to operation mode and key press time. In a method for controlling the side key, at least two functions are assigned to the side key. Receiving a press input from the side key, a control unit determines a key setting type corresponding to the received press input. Then the control unit retrieves a function corresponding to the determined key setting type from the assigned functions, and then performs the retrieved function of the side key.

Abstract: The invention is intended for the technological field of data communication between electronic equipment (1-4) forming part of a system of electronic equipment (10). The invention more specifically relates to a method and a system to facilitate, using an identifier having the form of a visual code, the transmission of command data to one of the electronic equipment items of the system, when the electronic equipment that produces the visual code is activated. The transmission of command data intended for one of the equipment items is performed following the reading and decoding of the visual code, for example with another equipment item of the system.

Abstract: A universal smart interface and peripheral management system for portable devices such as mobile phones. The smart system includes a connector interface that connects peripherals to a phone and/or personal digital assistant (PDA), through the smart system. The smart system includes a cradle for receiving a cell phone and interfacing the phone to external systems such as peripherals, networks and other systems through a USB hub and other suitable connector interfaces. The peripheral devices to which the smart system can interface include, but are not limited to, large displays (e.g., television), external monitors, input devices such as mice and keyboards, external storage devices, and networks (wired and/or wireless). The smart system also facilitates connectivity to large display systems such as TVs, computer displays and monitors.

Abstract: A participant list display method is provided in which, when referring to status and details of a participant with many utterances, it is possible to reduce effort required in page turning or scrolling operations. In step S1 a mobile telephone performs utterance processing for a participant in PTT communication, to perform PTT starting processing; in step S2, a variable is acquired in working memory for counting number of utterances for each participant; and in step S3 a state of waiting to obtain a right to speak is entered. In the mobile telephone, from the state of waiting to obtain the right to speak, when a party who wishes to speak obtains the right to speak in step S4, a count of number of utterances for the participant that is stored in the working memory is incremented in step S5. The mobile telephone refers to the number of utterances for each participant stored in the working memory, and sorts the list of participants displayed on the display unit, in order of number of utterances.

Abstract: A communication system that facilitates the transmission of audio messages via dispatch communications to subscriber units as members of a distribution list. The system includes a network device (e.g., a message application server) adapted to receive a dispatch communication including an audio message from an originating subscriber unit intended for member(s) of a distribution list; post the audio message for retrieval by the members of the distribution list; send respective notifications of the posting of the audio message to the members of the distribution list; receive requests for the audio message from the members of the distribution list; and send respective dispatch communications including the audio message to the requesting members of the distribution list.

Abstract: A handheld instant messaging terminal manages multiple conversation sessions across multiple instant messaging services.

Abstract: In-phase (I) and quadrature-phase (Q) signals are corrected for both amplitude and phase imbalances by passing the I and Q signals successively through a first amplitude correction stage, a sum-difference stage, and a second amplitude correction stage. The first amplitude correction stage balances the signal levels of the I and Q signals. The sum-difference stage produce a sum of the input I and Q signals, and a difference of the input I and Q signals, resulting in ideal quadrature in the outputs produced. The second amplitude correction stage corrects the amplitude differences from the sum-difference stage. Circuit configurations are used that minimize errors produced by the signal processing stages.

Abstract: The present invention relates to a Push to talk Over Cellular [PoC] Server for providing PoC communication services in mobile radio communications system, the PoC Server being arranged to perform at least one Controlling PoC Function for a PoC Session between PoC Clients in mobile terminals. The PoC Server is characterized in that it is arranged to: receive a first information indicating the PoC Session priority order for the PoC Session for each of the PoC Clients participating in the PoC Session; receive a second information, if any one of the PoC Clients is also participating in other simultaneous PoC Sessions, indicating the PoC Session priority order for the other simultaneous PoC Sessions for each of the PoC Clients participating in the other simultaneous PoC Sessions; store the first and second information for enabling control of the transmission of Media in the PoC Session based on the first and second information.

Abstract: A user equipment (UE), method and system for processing session based communications, are discussed. According to an embodiment, the method includes receiving a message from a terminal that informs whether the terminal supports simultaneous PT (push-to) sessions; recognizing that the terminal supports simultaneous PT sessions according to the received message; and transporting data to one or more terminals through the server operating in B2BUA (Back-to-Back User Agent) mode, wherein a simultaneous PT session refers to a session where the server performs a PT session priority function or a PT session locking function.

Abstract: In a push-to-talk device having two processors where one of the processors is a radio chip and one of the processors is a microprocessor, a method and apparatus for synchronizing the microprocessor and the radio chip includes the steps of checking the status of a radio push-to-talk key on the radio chip when a user push-to-talk button is turned on or off on the microprocessor; if the user push-to-talk button is on and the radio push-to-talk key is off, performing the steps of sending a command to the radio chip to turn on the radio push-to-talk key; and waiting for a response from the radio chip, and if the response indicates the radio push-to-talk key is on, remaining in this synchronized state, otherwise repeating the sending and waiting steps; if the user button is off and the radio push-to-talk key is on, performing the steps of: sending a command to the radio chip to turn off the radio push-to-talk key; and waiting for a response from the radio chip, and if the response indicates the radio push-to-talk k

Abstract: A high-frequency module according to the present embodiment includes a substrate, a circuit board, and a resonator. The substrate has an input-output portion for high-frequency signals formed on one surface thereof. The circuit board includes a dielectric waveguide line with its end face exposed, and is placed on the one surface of the substrate such that a virtual plane extending beyond the end face is intersected by the one surface of the substrate. The resonator includes input-output end portions for high-frequency signals at ends thereof, in which one of the input-output end portions is connected to the end face of the dielectric waveguide line, and the other thereof is connected to the input-output portion of the substrate.

Abstract: A media transfer and control system that includes a handheld device and an audio/visual system. The media transfer and control system provides for: (i) the transfer of media files between the handheld device and the audio/visual system, (ii) the transmission of control commands from the handheld device to the audio/visual system for controlling the function and operation of the audio/visual system through a user interface provided on the handheld device, and (iii) the unsolicited transfer of media descriptive data between the handheld device and the audio/visual system to create a synchronized global view on the handheld electronic device and/or the audio/visual system of all of the media content currently stored on and/or available through both the handheld device and the audio/visual system.