Abstract: A method, apparatus and system for communicating in a wireless mesh network may entail receiving a multi-receiver single body broadcast (MRSSB) medium access control (MAC) frame at a mesh node. The MAC frame may include a multiple receiver address field, a previously addressed neighbor field and a message sequence number field, which may be used by the receiving node to know whether it has already received this frame and if not, generate a forwarding frame to forward the data of the received frame but addressed to neighboring nodes except for those which are likely to have previously received the message already. Various embodiments and implementations are also disclosed.

Abstract: A method for establishing communications between a master unit and a plurality of node units. Of the plurality of node units, K node units are assumed to have established communications with a master unit. A first (K+1) node unit of the plurality of node units, desires to establish communications with the master unit. The method includes transmitting from the master unit, a base-station spread spectrum signal having a common signaling chip code, transmitting from the first node unit a second spread spectrum signal with a first identification code using the common-signaling chip code, transmitting from the master unit a third spread spectrum signal with a master unit identification code, using the common-signaling chip code. The method further includes generating at the first node unit using the master unit identification signal, a master unit chip code for transmitting spread spectrum signals to the master unit.

Abstract: A method, apparatus and system relate to detecting an interfering device in a wireless network such as a wireless local area network (WLAN). In wireless networks using orthogonal frequency division multiplexing (OFDM) and adaptive bit loading (ABL), adaptive modulation information should be somewhat symmetric in uplink and downlink directions. By comparing modulation adaptations in the uplink and downlink directions of a communication channel between at least two terminals, identified differences can indicate the presence of a potential interferer in the wireless network. A location of the potential interferer can be estimated if a location of one or more network terminals experiencing interference is known or can be determined. An exemplary implementation for a device of the invention may be as an Access Point (AP) in the WLAN.

Abstract: Briefly, in accordance with one embodiment of the invention, a portable computing device that has a processor, a direct memory access (DMA) engine, and a display controller may transfer data with the DMA engine to the display. The DMA engine may transfer the data while the processor is in a standby mode and transfer data to the processor while the processor is executing instructions.

Abstract: Briefly, in accordance with an embodiment of the invention, an apparatus to suppress surface currents is provided. The apparatus may include very high frequency (VHF) antenna and a frequency selective surface (FSS) structure adjacent to the VHF antenna. The FSS structure may include a ground plane, a first conductive via coupled to the ground plane, and a first conductive plate coupled to the first conductive via, wherein the FSS structure has a band gap frequency in the VHF band.

Abstract: Briefly, in accordance with one embodiment of the invention, a portable communication device includes a microelectromechanical system (MEMS) device to couple an antennae from a first and second transceiver.

Abstract: Briefly, in accordance with one more embodiment of the invention, an integrated circuit includes: a switch adapted to receive a packet of binary digital signals as encoded binary digital signals including encoded binary digital signals used to route the packet through the network. The switch is further adapted to copy the encoded binary digital signals used to route the packet through the network, at least for decoding the encoded binary digital signals. Briefly, in accordance with yet another embodiment of the invention, an integrated circuit includes: a switch adapted to receive a packet of binary digital signals, the packet of binary digital signals including encoded binary digital signals specifying a route through a network without decoding.

Abstract: A system for accessing a telephone system, in which a set of user stations are matched with a set of base stations for connection to a telephone network. Each base station may be coupled directly or indirectly to the telephone network and may be capable of initiating or receiving calls on the telephone network. Each user station may comprise a spread-spectrum transmitter or receiver and may be capable of dynamic connection to selected base stations. A plurality of base stations may be coupled to a private exchange telephone system for coupling user stations in calls outside the telephone network.

Abstract: A communication protocol for use in a mobile cellular communication system using time division duplex establishes a communication channel between a user station (e.g., a handset) and a base station in a time slot by assigning a first time segment within the time slot for a user station transmission and assigning a second time segment within the time slot for a base station transmission. The protocol also provides for virtual time slots wherein a time segment assigned for periodic transmission from the base station to a given user station may be non-contiguous with respect to the time segment assigned for periodic transmissions from the user station to the base station.

Abstract: An apparatus for conveying signals between a communications card and a signal utilization device or network. In one form (FIGS. 1,2), structures are provided for receiving an RJ series plug and for making electrical connection with at the contacts on the plug and conveying any signals on the contacts to a communications device such as a telephone, facsimile machine, modem, or a local area network adapter. A body (102) includes one or more recesses (106) which receive the plug. An expandable and stretchable membrane (114) isolates the contacts in the plug from electrical contact with an object in a surrounding environment such that passage of current from one or more of the electrical contacts to an object present in the surrounding environment is prevented. Also provided (FIGS. 7, 14) is a replaceable direct access arrangement (151, 258) which is replaceably held within the communications device (150, 250).

Abstract: Briefly, in accordance with one embodiment of the invention, a portable computing device includes a modem that may operate independently from a main processor. The modem may be used to download communication data while the main processor is inactive or powered off.

Abstract: Briefly, in accordance with one embodiment of the invention, an integrated circuit has a voltage generator that selectively increases the voltage potential on the channel region of a transistor relative to the source region of the transistor. The voltage potential may be provided to a diffusion region in the well regions with transistors.

Abstract: A wireless communication system including a repeated pattern of cells, in which base station transmitters and user station transmitters for each cell may be assigned a spread-spectrum code for modulating radio signal communication in that cell. Radio signals used in that cell are spread across a bandwidth sufficiently wide that both base station receivers and user station receivers in an adjacent cell may distinguish communication which originates in one cell from another. Adjacent cells may use distinguishable frequencies and distinguishable codes, but it is sufficient if adjacent cells use distinguishable frequencies and identical codes. A repeated pattern of cells allows the codes each to be reused in a plurality of cells.

Abstract: A simple and flexible over-air protocol for use with a mobile telephone system, having hand-held telephones in a microcell or other type of cellular communication system. A method in which user stations communicate with one or more base stations to place and receive telephone calls, in which the user stations are provided a secure voice or data link and have the ability to handoff calls between base stations while such calls are in progress. Each base station has a set of “air channels” to which it transmits in sequence. The air channels supported by each base station are called that base station's “polling loop”. A user station receives general polling information on an unoccupied air channel, transmits responsive information to the base station, and awaits acknowledgment from the base station. Each base station may therefore simultaneously maintain communication with as many user stations as there are air channels in its polling loop.

Abstract: A spread spectrum transmitter adapted for transmitting input data streams from a DECT (Digital European Cordless Telecommunication System) MAC (medium-access control) layer, where the data streams conform to a DECT physical layer packet structure. A related spread spectrum receiver is also disclosed.

Abstract: An apparatus for conveying signals between a communications card and a signal utilization device or network. In one form (FIGS. 1,2), structures are provided for receiving one or more RJ series plugs and for making electrical connection with at the contacts on the plug and conveying any signals on the contacts to a communications device such as a telephone, facsimile machine, modem, or a local area network adapter. A body (102) includes one or more recesses (106) which receive the plug. An expandable and stretchable membrane (114) isolates the contacts in the plug from electrical contact with an object in a surrounding environment such that passage of current from one or more of the electrical contacts to an object present in the surrounding environment is prevented. Also provided (FIGS. 7, 14) is a replaceable direct access arrangement (151, 258) which is replaceably held within the communications device (150, 250).

Abstract: An apparatus for conveying signals between a communications card and a signal utilization device or network. In one form (FIGS. 1,2), structures are provided for receiving one or more RJ series plugs and for making electrical connection with at the contacts on the plug and conveying any signals on the contacts to a communications device such as a telephone, facsimile machine, modem, or a local area network adapter. A body (102) includes one or more recesses (106) which receive the plug. An expandable and stretchable membrane (114) isolates the contacts in the plug from electrical contact with an object in a surrounding environment such that passage of current from one or more of the electrical contacts to an object present in the surrounding environment is prevented. Also provided (FIGS. 7, 14) is a replaceable direct access arrangement (151, 258) which is replaceably held within the communications device (150, 250).