Abstract: An actuating unit of a motor vehicle seat comprises an actuating element, a base part, a pivot axis, and a spring. The pivot axis is disposed between the base part and the actuating element and enables a pivoting movement of the actuating element relative to the base part. The spring is disposed between the actuating element and the base part and elastically biases the actuating element into a rest position relative to the base part.

Abstract: A communications system operating in one or more frequency bands of various number of channels per band (for a total of N channels), and a novel transceiver for receiving these multiple bands of signals. The transceiver comprises an antenna and RF front end for each said band, a separate RF to IF downconverter for each said band. The IF for each band is centered at a succession of frequencies Fo such that the spectra for each band are non-overlapping, with the center frequencies. Analog-to-digital converter sampling rate is chosen such that one band is centered at baseband, and one or more other bands are centered at a specific relationship with the sampling rate such that each band is individually downconverted to baseband by appropriate selection of tap weight multiplying sequences (such as alternating +/− sequence for the case of Fo equal to one-fourth the sampling rate). An analog-to-digital converter converts analog signals to digital signals from the combiner.

Abstract: An information broadcast system having a broadband broadcast system selected from cable and satellite for broadcasting requested information from a selected information source, including the Internet, to one or more selected subscriber stations includes an independent backhaul channel for communicating information request signals from a subscriber station to one or more central processing stations. The system includes a data broadcast station for transmitting requested data from the selected data source and central station via the data broadcast station to the one or more selected subscriber stations. The high-data rate broadcast station forwards requested data from a data source to the data broadcast station. A backhaul satellite communication system, independent of the broadband broadcast system, has a backhaul satellite ground terminal for coupling information request signals from backhaul satellite communication system to high data broadcast station terminal.

Abstract: A position monitoring system having a position finder subsystem connected via a cellular telephone to a central monitoring station, a receive/transmit device carried with the position monitoring subsystem. A remote personal signalling subsystem comprising an RF coder modulator for transmitting a coded RF signal, and operating switch for activating the RF coder modulator. A receiver/transmit device is carried with a position monitoring subsystem for receiving the coded RF signal, decoding same and transmitting a coded RF acknowledgement signal. The remote personal signalling subsystem includes an RF decoder and demodulator for receiving and decoding the coded RF acknowledgement signal and a tactile signalling device is operated by the RF decoder and demodulator upon receipt of the coded RF acknowledgement signal and provides a tactile signal to a user that the RF coded signal had been properly received by the position finding subsystem.

Abstract: This invention relates to a novel receiver architecture, the Charge-Coupled-Device Integrated Receiver (IR), which simplifies electronic circuitry requirements and reduce baseband processing rates through efficient signal processing. The focus of this receiver's design is its use of Charge-Coupled-Device (CCD) technology. By using CCD's, in conjunction with other key technologies, to implement the signal processing techniques disclosed herein, it is possible to provide a receiver that is suitable for a wide range of applications (e.g., communications, sonar, radar, etc.). Information is presented which outlines the fundamental receiver architecture that is appropriate for a wide range of commercial services (e.g., AMPS, NAMPS, Digital Cellular, GSM, PCS, ISM, CT1, CT2, etc.) Furthermore, tile versatility of this architecture makes it suited for uses ranging from simple AM/FM receivers to complex high-order modulation TDMA/CDMA receivers.

Abstract: The interference detection and characterization system of this invention supports modern communication systems which have to contend with a variety of intentional and unintentional interference souces. As an add-on to existing communications equipment, the invention employs novel signal processing techniques to automatically detect the presence of communications channel irregularities in near real-time and alert the attending operator. Information provided to the operator through a user-friendly interface is used to characterize the type of interference and its degree of severity. Once characterized, the information is used by the operator to take corrective actions including the activation of alternative communication plans or, in some instances, mitigation of the interference. Since output from the system of this invention lends itself well to expert system and neural network environments, such systems could be employed to further aid the operator.

Abstract: A demodulator apparatus for demodulating a data bearing broadcast signal in the absence of mixers and without incurring quantization errors. The apparatus incorporates a receiver for receiving a broadcast signal and producing therefrom a predetermined intermediate carrier frequency (F.sub.IF), transversal filter connected to receive the intermediate carrier frequency F.sub.IF has N active stages and tap weight means at each of said stages for entering a tap weight sequence to yield maximum correlation energy when desired alignment occurs to thereby make phase and frequency agreement between local timing and the received signal, and the frequency F.sub.IF is sampled at a clock rate (F.sub.s) of: ##EQU1## wherein F.sub.IF is the intermediate frequency and K is a scaling factor which is related to the number of carrier cycles per stage, the transversal filter includes a charge coupled device having the N active stages.