Abstract: A subwoofer is equipped with a wireless receiver to receive signals containing information for a Low Frequency Effects (LFE) channel and information for both surround channels. In one form, the LFE is added to one or both surround channels to provide a stereo surround signal (containing both surround channels) including a multiplexed LFE channel. The subwoofer utilizes the LFE channel, powers surround speakers, and passes the surround signals to respective surround speakers. A receiver multiplexes LFE signals into either one or both surround sound audio channels. A digital RF transmitter of the receiver transmits the combined subwoofer/surround channels to the wireless receiver of the subwoofer. The remote subwoofer is connected to a power source. The surround speakers are connected to the subwoofer so as to receive the surround channels and be powered thereby.

Abstract: A subwoofer (72) is equipped with a wireless receiver (80) to receive signals containing information for a Low Frequency Effects (LFE) channel and information for both surround channels. In one form, the LFE is added to one or both surround channels to provide a stereo surround signal (containing both surround channels including a multiplexed LFE channel). The subwoofer (72) utilizes the LFE channel, powers surround speakers (74, 76), and passes the surround signals to respective surround speakers. A receiver (66) multiplexes LFE signals into either one or both surround sound audio channels. A digital RF transmitter (70) of the receiver transmits the combined subwoofer/surround channels to the wireless receiver (80) of the subwoofer. The remote subwoofer is connected to a power source (78). The surround speakers (74, 76) are connected to the subwoofer so as to receive the surround channels and be powered thereby.

Abstract: A method and an apparatus for providing digital quality transmission of audio and non-audio information using low cost components and arrangement. The present invention provides for the transmission of the audio and non-audio transmission by first converting the data to conform to the CD standard format and conditioning the converted signal to thereby generate a conditioned EFM signal. The conditioned EFM signal is used to frequency modulate a carrier. By converting the audio and non-audio information to conform to the CD standard format, the present method provides a low cost means of transmitting the data with error detection and correction. Another aspect of the present invention relates to embedding the non-audio information in the SUBCODE block of the data frame according to the CD standard. The non-audio information may be unrelated to the audio information, and the audio and non-audio information may be transmitted to separate devices.

Abstract: A method and an apparatus for providing digital quality transmission of audio and non-audio information using low cost components and arrangement. The present invention provides for the transmission of the audio and non-audio transmission by first converting the data to conform to the CD standard format and conditioning the converted signal to thereby generate a conditioned EFM signal. The conditioned EFM signal is used to frequency modulate a carrier. By converting the audio and non-audio information to conform to the CD standard format, the present method provides a low cost means of transmitting the data with error detection and correction. Another aspect of the present invention relates to embedding the non-audio information in the SUBCODE block of the data frame according to the CD standard. The non-audio information may be unrelated to the audio information, and the audio and non-audio information may be transmitted to separate devices.

Abstract: A system and method for detecting a condition of an extension telephone is presented for processing caller ID information. A reference value of a telephone line connected to an apparatus is first determined. An auxiliary telephone connected to the apparatus is then disconnected. A second value of the telephone line is determined while the auxiliary telephone is disconnected. The reference value and the second value of the telephone line are compared to determine the condition, such as off-hook, of the extension telephone.

Abstract: A method and system for message communications in different media. A first message is received via a first communications medium. First address information associated with the first communications medium is extracting from the first communications medium. Second address information associated with a second communications medium is determined automatically in response to the first address information. A reply for the first message is sent via the second communications medium using the second address information.