Abstract: A method and apparatus for facilitating handoff from a network access point (NAP) that is arranged and constructed to provide service to a communications unit (CU) in a frequency hopped communications system. The operations that are performed are providing service between the CU and the NAP on a connection using a first frequency hopping pattern (FHP); determining that the connection is suitable for discontinuation based on RSSI or load; sending a first message including an ID for the NAP and schedule for the CU to neighboring NAPS, the message requesting assistance with the service on tho first FHP; and receiving a second message from a neighboring NAP, arranged and constructed to provide connections to CUs using a second FHP, the second message indicating that assistance can be provided by the neighboring NAP.

Abstract: In accordance with the preferred embodiments of the present invention, a method (400) and an apparatus (e.g., mobile station (160)) for providing status information associated with a plurality of users of real-time communication service: The mobile station (160) provides a plurality of logon identifiers associated with a first subscriber. Each of the plurality of logon identifiers corresponds to one of the plurality of users so that the plurality of users may access real-time communication service via the first subscriber. The plurality of logon identifiers may be, but is not limited to, a first name, a last name, a persona, an IP address, and a port number. The mobile station (160) monitors status associated with the plurality of logon identifiers to provide status information. The status information may be, but is not limited to, information indicating one of on-line, off-line, busy, away, on-the-phone, out-to-lunch, and nearby.

Abstract: A method and apparatus for facilitating handoff from a network access point (NAP) that is arranged and constructed to provide service to a communications unit (CU) in a frequency hopped communications system is disclosed. The operations that are performed are providing service between the CU and the NAP on a connection using a first frequency hopping pattern (FHP); determining that the connection is suitable for discontinuation based on RSSI or load; sending a first message including an ID for the NAP and schedule for the CU to neighboring NAPS, the message requesting assistance with the service on the first FHP; and receiving a second message from a neighboring NAP, arranged and constructed to provide connections to CUs using a second FHP, the second message indicating that assistance can be provided by the neighboring NAP.

Abstract: A peripheral card (109) having an adaptive PCMCIA compliant interface including either an adaptive card present or card configuration function that includes a peripheral apparatus (209) arranged and constructed to operate in conjunction with a host computer (101) over a PCMCIA compliant interface, and an interface logic (205), coupled to the peripheral apparatus (209) and to a PCMCIA peripheral port (201), for interfacing the peripheral apparatus to the PCMCIA peripheral port (201), the interface logic further adaptively providing a card present signal at the PCMCIA peripheral port (201) when the peripheral apparatus (209) and the interface logic (205) expects the PCMCIA peripheral port (201) to be activated by the host computer (101) or alternatively adaptively providing configuration information pertaining to the peripheral apparatus to the host computer.

Abstract: A knowledge based radio that monitors changed operating parameters and environmental conditions, and that selectively varies operating parameters of the radio in response to rules. The rules can be varied over time by the radio based upon the monitored response of the user to various environmental conditions.

Abstract: An electronic pushbutton tunable radio (10) having various audio controls is disclosed. A single pushbutton (22) is utilized to implement volume, fader and balance modes of operation during which up/down pushbuttons (20,21) control the overall and relative magnitude of audio signals produced by four speakers (24-27) while at the same time a single display (17) is utilized to display, respectively, either the channel to which the radio is tuned, the relative magnitude between right and left speaker audio signals, or the relative magnitude between front and back speaker audio signals. The radio has tuning pushbuttons (14) for direct recall of preset radio channels in a tuning mode operation.

Abstract: An amplitude modulated transmitter includes an audio amplifier which, via a radio frequency (RF) power supply modulator, modulates an RF amplifier and carrier. Fluctuations in the direct current DC bias to the RF amp, such as are common in mobile applications, vary the modulation index of the transmitted signal.To minimize DC bias affects on the modulation index, the invention contemplates an audio compressor which senses both audio signal level and DC bias level and, in response thereto, controls audio signal compression to maintain the desired percent modulation. Compression is effected by changing the bias on a semiconductor device which, in turn, attenuates audio signals at the input of a fixed gain audio amplifier. A feedback path around the audio amplifier senses both DC voltage and audio signal level and produces an appropriate control signal to bias the semiconductor device, thereby altering audio compression.

Abstract: An amplitude modulated transmitter includes an audio amplifier which, via a radio frequency (RF) power supply modulator, modulates an RF amplifier and carrier. Fluctuations in the direct current DC bias to the RF amp, such as are common in mobile applications, vary the modulation index of the transmitted signal.To minimize DC bias affects on the modulation index, the invention contemplates an audio compressor which senses both audio signal level and DC bias level and, in response thereto, controls audio signal compression to maintain the desired percent modulation. Compression is effected by changing the bias on a semiconductor device which, in turn, attenuates audio signals at the input of a fixed gain audio amplifier. A feedback path around the audio amplifier senses both DC voltage and audio signal level and produces an appropriate control signal to bias the semiconductor device, thereby altering audio compression.