摘要:
Synchronized UWB piconets for SOP (Simultaneously Operating Piconet) performance. A common backbone (either wired or wireless) is employed that provides a common CLK (clock signal) to all of the various PNCs (piconet coordinators) of various piconets that may operate within a sufficiently close region such that interference could undesirably occur. By providing a very reliable CLK signal from a common backbone to all of the PNCs of the various piconets operating within a substantially close proximity to one another, very precise synchronization may be ensured for all of the communications performed therein. The various piconets may then even operate using TDMA (Time Division Multiple Access)—whose performance would be substantially compromised without effective synchronization. In addition, combined TFC (time frequency code) and TDMA may also be employed to support the communications therein thereby providing even another degree of orthogonality that provided by TDMA alone.
摘要:
A system for revoking access to a mobile device comprises a mobile device providing a plurality of applications and an agent providing a plurality of revocation procedures for revoking access by the mobile device to the plurality of applications running on the mobile device. Access to a first application is revoked by the agent using a first revocation procedure, and access to a second application is revoked by the agent using a second revocation procedure.
摘要:
A circuit includes a first wireless interface circuit that communicates packetized data to a first external device in accordance with a first wireless communication protocol. A second wireless interface circuit communicates packetized data to a second external device in accordance with a second wireless communication protocol. A plurality of signal lines communicate at least four lines of cooperation data between the first wireless interface circuit and the second wireless interface circuit, wherein the cooperation data relates to cooperate transceiving in a common frequency spectrum.
摘要:
Synchronized UWB piconets for SOP (Simultaneously Operating Piconet) performance. A common backbone (either wired or wireless) is employed that provides a common CLK (clock signal) to all of the various PNCs (piconet coordinators) of various piconets that may operate within a sufficiently close region such that interference could undesirably occur. By providing a very reliable CLK signal from a common backbone to all of the PNCs of the various piconets operating within a substantially close proximity to one another, very precise synchronization may be ensured for all of the communications performed therein. The various piconets may then even operate using TDMA (Time Division Multiple Access)—whose performance would be substantially compromised without effective synchronization. In addition, combined TFC (time frequency code) and TDMA may also be employed to support the communications therein thereby providing even another degree of orthogonality that provided by TDMA alone.
摘要:
An intuitive graphical user interface is based upon a geographic map structure, and includes a system for controlling remote external electronic devices. In the defined graphical user interface, each space of the geographic map structure is rendered on a touch screen display as a graphic image of a geographic space. Within each space are colored cartoon-like icons called “objects” which can be selected and manipulated by the user. Certain objects, referred to as portals, transport the user from one space to another space when Selected. Other objects, referred to as buttons, perform associated actions or functions when Selected. The graphical user interface is displayed on a hand-held display device used to control remote devices. Each remote electronic device transmits a user interface program object that defines a graphical user interface to the display device. The hand-held display devices displays the graphical user interface associated with the remote device when a user selects an icon associated with the remote device on the display device's touch screen display.
摘要:
A network interface is presented that receives packet data from a shared medium and accomplishes the signal processing required to convert the data packet to host computer formatted data separately from receiving the data packet. The network interface receives the data packet, converts the analog signal to a digitized signal, and stores the resulting sample packet in a storage queue. An off-line processor, which may be the host computer itself, performs the signal processing required to interpret the sample packet. In transmission, the off-line process converts host-formatted data to a digitized version of a transmission data packet and stores that in a transmission queue. A transmitter converts the transmission data packet format and transmits the data to the shared medium.
摘要:
An intuitive graphical user interface is based upon a geographic map structure, and includes a system for controlling remote external electronic devices. In the defined graphical user interface, each space of the geographic map structure is rendered on a touch screen display as a graphic image of a geographic space. Within each space are colored cartoon-like icons called "objects" which can be selected and manipulated by the user. Certain objects, referred to as portals, transport the user from one space to another space when Selected. Other objects, referred to as buttons, perform associated actions or functions when Selected. The graphical user interface is displayed on a hand-held display device used to control remote devices. Each remote electronic device transmits a user interface program object that defines a graphical user interface to the display device. The hand-held display devices displays the graphical user interface associated with the remote device when a user selects an icon associated with the remote device on the display device's touch screen display.
摘要:
A method and apparatus for quickly copying a first frame region into a second frame region. A video memory array comprising a plurality of video random access memory devices is divided into at least two frame regions. A background image is rendered by a central processing unit into a background frame region within the video memory array. The central processing unit then requests the background image in the background frame region to be copied into a new frame region in the video memory array. A dedicated circuit copies the entire background image in the background frame region into the new frame region. The dedicated circuit operates by using a serial data register within each video random access memory device during the vertical retrace period of a video timing signal. The dedicated circuit performs the background frame copy without requiring any processing resources from the central processing unit.
摘要:
A control device method and apparatus has application for use in multi-media systems. The multi-media system contains a host computer having a video display, a control device and at least one target device. The target device is any remotely controlled equipment that the user wishes to integrate into the multi-media system. The host computer contains a host system configuration which provides the user the ability to select an operating mode for the control device. The control device operates as an interactive user interface to control a cursor on the host computer video display when the control device is placed in the cursor control mode. The user selects a remote control mode to remotely control the target devices using the control device. The host system configuration also includes learn and computer networking modes. In the learn mode, control data information is entered into the host system configuration for new target devices. In the computer networking mode, the control device operates as a network interface allowing other similarly equipped computers to communicate with the host computer.
摘要:
A paging system which sends and receives encrypted messages. The message may be encrypted either by the sender of the message or by the paging system. Multiple keys may be used for encrypting and decrypting. Public key systems may also be used and integrated into this paging system. The paging system can send out time update messages containing the current time and date. The pagers use the time update messages to automatically update the time in an internal clock. Time stamps can be inserted into the encrypted messages to prevent unauthorized users from replaying old messages.