Abstract: A hybrid cordless telephone system allows a user to place or receive a call over either a data network or a PSTN network. In one aspect, a system router and PSTN unit are coupled with a communications manager to avoid extensive redesign of router components and PSTN components while providing a wireless user with data network and PSTN connectivity. In another aspect, the system router of the hybrid cordless telephone system includes a communications manager configured to provide termination of data network calls or PSTN calls at the system router. Accordingly, a plurality of handsets can each access the system router to place or receive calls from the data or PSTN networks.

Abstract: Systems and methods are provided for routing data messages between a cellular telephone and a cordless telephone system having a plurality of cordless handsets configured to communicate with a single cordless base station when in range. Messages are received at the cordless base station via a first radio frequency transfer protocol. The message is transmitted to the cordless base station from the cellular telephone after the cellular telephone has received the message from a cellular network. The cordless base station transmits the message to a desired one of the plurality of cordless handsets via a second radio frequency transfer protocol. The desired one of the plurality of cordless handsets is chosen based on predetermined message routing settings.

Abstract: A hybrid cordless telephone system allows a user to place or receive a call over either a data network or a PSTN network. In one aspect, a system router and PSTN unit are coupled with a communications manager to avoid extensive redesign of router components and PSTN components while providing a wireless user with data network and PSTN connectivity. In another aspect, the system router of the hybrid cordless telephone system includes a communications manager configured to provide termination of data network calls or PSTN calls at the system router. Accordingly, a plurality of handsets can each access the system router to place or receive calls from the data or PSTN networks.

Abstract: A system and method for improved data transmission in a WDCT frame structure. A transmission slot in a WDCT frame of conventional size is configured for transmission of data bits having substantially smaller data bit width than used in conventional WDCT frames. A user data field is configured to transmit a larger data payload by including more bits within the user data field. In one implementation, the user data field is configured for transmission of multiple copies of a voice data packet at the same rate as single data packets are transmitted in a conventional WDCT frame structure. In another implementation, a non-voice data transmission rate is increased by more than a factor of two over conventional WDCT frame structure.

Abstract: Systems and methods are provided for routing data messages between a cellular telephone and a cordless telephone system having a plurality of cordless handsets configured to communicate with a single cordless base station when in range. Messages are received at the cordless base station via a first radio frequency transfer protocol. The message is transmitted to the cordless base station from the cellular telephone after the cellular telephone has received the message from a cellular network. The cordless base station transmits the message to a desired one of the plurality of cordless handsets via a second radio frequency transfer protocol. The desired one of the plurality of cordless handsets is chosen based on predetermined message routing settings.

Abstract: A method and apparatus for providing caller ID information related to a third party, to a telephone user already engaged in a telephone call with a second party. A burst of FSK data is transmitted to the user during the conversation with the second party. The FSK data signal is detected and modified as it is received, such as through the addition of a melody, prior to being audibly conveyed to the telephone user. The resulting modified signal is aesthetically pleasing to the user, while indicating to the user that communications with the second party are temporarily interrupted.

Abstract: A system and method for avoiding mutual interference between two communications system is disclosed. One embodiment of the invention provides a system that includes a fixed unit and a portable unit. The fixed unit has a fixed transceiver. The portable unit has a portable transceiver. The fixed transceiver and the portable transceiver are members of a first RF system of the first RF system. The portable transceiver is configured to communicate with the fixed transceiver via a first RF link of the first RF system. The system further includes an additional transceiver. The additional transceiver is configured to communicate with a headset via a second RF link of a second RF system. The system further includes a processor that is coupled to one of the fixed transceiver, the portable transceiver, and the additional transceiver. The processor is configured to avoid interference between the first RF link and the second RF link.

Abstract: Systems and methods of enhanced real-time communications between WiFi devices. In one embodiment of the present invention a method for enhanced payload protection in a WiFi system includes transmitting multiple copies of data packets in successive frame body transmissions. In another embodiment, a method for enhanced communications over a WiFi link includes examining a unit ID packet to determine a destination of a data payload when errors are detected in IP and/or MAC headers. If a destination is determined, the packet is corrected and forwarded to the device based on the unit ID determination. In another embodiment, a method for enhanced real-time communications in a WiFi network includes establishing a communications frame that includes an active timeslot, preferably based on U-APSD, for a WiFi device to use for transmission of successive audio data packets transmitted between the WiFi handset and AP.

Abstract: A hybrid cordless telephone system allows a user to place or receive a call over either a data network or a PSTN network. In one aspect, a system router and PSTN unit are coupled with a communications manager to avoid extensive redesign of router components and PSTN components while providing a wireless user with data network and PSTN connectivity. In another aspect, the system router of the hybrid cordless telephone system includes a communications manager configured to provide termination of data network calls or PSTN calls at the system router. Accordingly, a plurality of handsets can each access the system router to place or receive calls from the data or PSTN networks.

Abstract: A hybrid cordless telephone system allows a user to place or receive a call over either a data network or a PSTN network. In one aspect, a system router and PSTN unit are coupled with a communications manager to avoid extensive redesign of router components and PSTN components while providing a wireless user with data network and PSTN connectivity. In another aspect, the system router of the hybrid cordless telephone system includes a communications manager configured to provide termination of data network calls or PSTN calls at the system router. Accordingly, a plurality of handsets can each access the system router to place or receive calls from the data or PSTN networks.

Abstract: A method for reducing errors in streaming data over a wireless link that aligns data frames with wireless packets. The method is especially suitable for a wireless link that requires a uniform packet size and prohibits re-transmission of packets. One embodiment aligns a start of a data frame with a first wireless packet, transmits a beginning portion of the data frame in the first wireless packet over a wireless link, inserts into a second wireless packet an ending portion of the data frame along with fill data sufficient to fill the second wireless packet, and transmits the second wireless packet over the wireless link. A further embodiment includes synchronization markers at the start of the beginning portion and the ending portion.

Abstract: A method and system for transmitting and receiving a control data signal within spreading signal and an intelligence/analog signal. The control data is interleaved within the spreading data signal at a transmitter side. Before transmitting to a remote receiver side, the spreading/control data signal, after passing a high-pass filter, and an intelligence signal, which is passing through a low-pass filter, are summed by a summing device to form a composite intelligence/spreading data (CISS)signal and are modulated on an RF carrier by a modulator. After receiving the CISS modulated RF carrier, the receiver side converses the CISS modulated RF carrier to IF signal, which is then demodulated by a demodulator to recover the original CISS signal. The CISS signal is then passing through a low-pass filter to recover the intelligence signal and through a high-pass filter to recover the spreading/control signal. The control signal is further recovered by a digital device.

Abstract: A system and method for enhancing communications between a WiFi terminal and other devices coupled to a wireless network. A wireless Access Point is configured to receive data from a data network through a wired link and to transmit and receive data over an 802.11 wireless link to one or more wireless devices. The wireless Access Point also includes a preset communications profile. A set of IP addresses and capability set information associated with devices of the wireless network is provided. Accordingly, a WiFi terminal WiFi terminal can automatically establish a link capable of data exchange with the wireless Access Point by simply powering up the WiFi terminal. In one embodiment, IP address and capability set information is automatically exchanged between the WiFi terminal and other compatible devices of the wireless network.

Abstract: A system and method for improved data transmission in a WDCT frame structure. A transmission slot in a WDCT frame of conventional size is configured for transmission of data bits having substantially smaller data bit width than used in conventional WDCT frames. A user data field is configured to transmit a larger data payload by including more bits within the user data field. In one implementation, the user data field is configured for transmission of multiple copies of a voice data packet at the same rate as single data packets are transmitted in a conventional WDCT frame structure. In another implementation, a non-voice data transmission rate is increased by more than a factor of two over conventional WDCT frame structure.

Abstract: A method for reducing interference from a wireless communications system. The interference threshold is set based on a quality criterion that can be measured during operation of the system. The quality criterion is measured during system operation. Preferably, a separate quality criterion measurement is performed for each of an uplink and a downlink of the wireless communications system. The quality criterion is compared to the information containing the set interference threshold. A breach of the interference threshold for the uplink or the downlink is determined when the measurement indicates that the measured quality criterion is sufficiently poor that operation of the system should be modified. Upon determination of an interference breach in either the uplink or downlink, the system initiates an asymmetric enhanced mode operation in which redundant data transmission is established over the link exhibiting the interference breach, while standard, non-redundant transmission continues on the other link.

Abstract: A cordless telephone implementing using a BLUETOOTH wireless bearer is presented. A BLUETOOTH voice data structure is implemented by coding the voice data at a bitrate below 64 kb/s, such that the full number of payload bits provided by the BLUETOOTH voice data structure are not required for transmission of voice data. The packet payload is then encoded in a non-standard format to implement a robust error detection and/or correction protocol for the voice data, as well as for the provision of a low-rate data channel for transmission of information such as caller ID. Alternatively, a BLUETOOTH non-voice data structure can be employed by transmitting encoded voice data as user payload bits. The data link is then flushed each time new voice data is ready for sending by the transmitting device. If slots are available before the data link is flushed, unsuccessfully transmitted data can be automatically resent, thereby implementing time and frequency diversity.

Abstract: A method and apparatus for providing caller ID information related to a third party, to a telephone user already engaged in a telephone call with a second party. A burst of FSK data is transmitted to the user during the conversation with the second party. The FSK data signal is detected and modified as it is received, such as through the addition of a melody, prior to being audibly conveyed to the telephone user. The resulting modified signal is aesthetically pleasing to the user, while indicating to the user that communications with the second party are temporarily interrupted.

Abstract: Systems and methods for wireless communications between at least one electronic device and a landline telephone. A system includes at least one electronic device in communication with a cordless telephone base station. In the preferred embodiment in which BLUETOOTH standards are used, each of the cordless telephone base station and the at least one electronic device includes a BLUETOOTH radio transceiver, so that the at least one electronic device can communicate with the base station using BLUETOOTH communications protocol. The cordless telephone base station also includes a cordless radio transceiver to communicate, using cordless radio frequency communications, with at least one cordless handset. The BLUETOOTH radio transceiver and the cordless radio transceiver of the cordless telephone base station are coupled so that a user can use cordless handsets to exchange messages, including audio, video and data, with the at least one electronic device through the control of the telephone base station.

Abstract: A system for allowing BT, WDCT, and 802.11 transceivers to operate in close proximity with a minimum of interference, is disclosed. In an exemplary embodiment, a method for avoiding interference between a first FHSS device and other RF devices using 802.11 or FHSS protocols is disclosed. The first FHSS device initially detects the presence of an interfering RF device (“interferer”), for example a device employing 802.11 protocol, and adjusts the frequency of channels used for operation of the first device accordingly to avoid overlap with the 802.11 band. In the presence of an additional interferer, for example, a second FHSS device emitting an interfering signal, the first FHSS device may segregate its operation channels to achieve maximum frequency separation from an 802.11 and second FHSS device. In addition, the first and third devices may also multiplex their transmit/receive timing to avoid interference in time domain.

Abstract: An error monitor for indicating the quality of communications on a digital communication channel. One or more error detection mechanisms provide indication when an error occurs. After receipt of an error indication, no further indications are detected until a burst error time window has passed. Error indications are stored in a bin. When time since an error indication has been received exceeds a second time period, the event is removed from the bin. When all slots in the bin contain error indications, an indication of the quality of communications on the channel is provided. Parameters can vary with the strength of the received signal to accommodate long range conditions.