An adaptive interface for a programmable system, for predicting a desired user function, based on user history, as well as machine internal status and context. The apparatus receives an input from the user and other data. A predicted input is presented for confirmation by the user, and the predictive mechanism is updated based on this feedback. Also provided is a pattern recognition system for a multimedia device, wherein a user input is matched to a video stream on a conceptual basis, allowing inexact programming of a multimedia device. The system analyzes a data stream for correspondence with a data pattern for processing and storage. The data stream is subjected to adaptive pattern recognition to extract features of interest to provide a highly compressed representation that may be efficiently processed to determine correspondence. Applications of the interface and system include a video cassette recorder (VCR), medical device, vehicle control system, audio device, environmental control system, securities trading terminal, and smart house. The system optionally includes an actuator for effecting the environment of operation, allowing closed-loop feedback operation and automated learning.

Adaptive pattern recognition based control system and method

Frequency translation and applications of same are described herein, including wireless local area network (WLAN) applications such as IEEE Standard 802.11 WLANs. Such applications include, but are not limited to, frequency down-conversion, frequency up-conversion, enhanced signal reception, unified down-conversion and filtering, and combinations and applications of same.

Wireless local area network (WLAN) technology and applications including techniques of universal frequency translation

A multiprocessor system used in a car, home, or office environment includes multiple processors that run different real-time applications A dynamic configuration system runs on the multiple processors and includes a device manager, configuration manager, and data manager The device manager automatically detects and adds new devices to the multiprocessor system, and the configuration manager automatically reconfigures which processors run the real-time applications The data manager identifies the type of data generated by the new devices and identifies which devices in the multiprocessor system are able to process the data

Method and apparatus for dynamic configuration of multiprocessor system

Methods, systems, and apparatuses, and combinations and sub-combinations thereof, for down-converting and up-converting an electromagnetic (EM) signal are described herein. Briefly stated, in embodiments the invention operates by receiving an EM signal and recursively operating on approximate half cycles (½, 1½, 2½, etc.) of the carrier signal. The recursive operations can be performed at a sub-harmonic rate of the carrier signal. The invention accumulates the results of the recursive operations and uses the accumulated results to form a down-converted signal. In an embodiment, the EM signal is down-converted to an intermediate frequency (IF) signal. In another embodiment, the EM signal is down-converted to a baseband information signal. In another embodiment, the EM signal is a frequency modulated (FM) signal, which is down-converted to a non-FM signal, such as a phase modulated (PM) signal or an amplitude modulated (AM) signal. Up-conversion is accomplished by controlling a switch with an oscillating signal, the frequency of the oscillating signal being selected as a sub-harmonic of the desired output frequency.

Method and system for down-converting and up-converting an electromagnetic signal, and transforms for same

The present invention includes a system and method for ensuring reception of a communications signal. A modulating baseband signal with desired information is accepted, and a plurality of redundant spectrums is generated. Each redundant spectrum comprises the necessary amplitude, phase, and frequency information to substantially reconstruct the modulating baseband signal. It is expected but not required that the redundant spectrums will be generated at a first location and sent to a second location over a communications medium. At the second location, the redundant spectrums are independently processed to recover a demodulating baseband signal for each of the redundant spectrums. In one embodiment, an error detection process is employed at the second location to detect and eliminate those demodulated baseband signals that have been corrupted during transmission. An error-free demodulated baseband signal is selected from the remaining demodulated baseband signals. The error-free demodulated baseband signal is representative of the modulating baseband signal sent over the communications medium.

Method and system for ensuring reception of a communications signal

A direct conversion receiver comprising mixers for mixing a received radio frequency signal and a local oscillation signal in frequency, a signal processing unit for converting the output signal of the mixers into a baseband signal, a delta-sigma modulator for detecting offset voltage from the output signal of the signal processing unit, a holding circuit for supplying offset canceling voltage for canceling the offset voltage, and a switch of supplying the output signal of the mixers to the delta-sigma modulator during a given period and supplying the offset canceling voltage sent from the holding circuit to the output side of the mixers.

Direct conversion receiver capable of canceling DC offset voltages

Received signal inputted from an antenna 1 is fed via a received signal mixer 2 and an A/D converter 3 to a demodulator 4 . The demodulator 4 is operated according to software down-loaded in a software memory 5 from a program memory 6 . A demodulator output digital signal is fed to a base-band signal processor 8 for signal processing, and then fed out through a man-machine interface 9 to the outside. On the transmission side, a signal to be transmitted is inputted to a modulator 10 though a route converse to that of the received signal. The modulator output is fed to a D/A converter 11 for conversion to an analog signal, which is in turn fed to a transmission signal mixer 12 for conversion to a carrier frequency, and then fed to a module, which includes a power amplifier 21 , a transmission signal filter 22 and an isolator 23 , to be transmitted via the antenna 1.

Software portable telephone

The transmitting and receiving circuits of a telephone are reconfigured afresh via software updates on the basis of the mounting of a detachable transmitting apparatus Received signal input from an antenna may be fed via a received signal mixer, 2, and an A/D converter, 3, to a demodulator, 4 On the transmission side, a signal may be input to a modulator, 10, through a route converse to that of the received signal, for analog output The updating software may be downloaded from a program memory, 6 and may further be capable of signal conversion processing and act according to a system switching command A wide-band synthesizer may be included The detachable module may include an amplifier, filter and isolator The transmission modules may operate at different frequencies The currently operating system may be detected on the basis of the demodulated output of the received signal and then displayed

Software portable telephone set

Direct conversion receiver capable of clearing DC offsed voltage

A single chip baseband LSI for personal transceivers is presented. This LSI consists of a digital section, which includes a 145 MHz phase locked loop and others, and an analog section. The analog section includes various filters with 26th-total order, limiter, integrator and differentiator. In order to achieve significant reductions in layout area and power dissipation, switched capacitor (SC) circuit techniques are employed. The filters are synthesized with low sensitivity LC ladder SC filters. Capacitor values of the SC filters are rounded off into integer values, and are discretely optimized. These techniques can allow us to use a small unit capacitor. A range of capacitor ratios is compressed through scaling up small capacitor values by dividing their voltages. An LSI was fabricated using 3 ?m CMOS technology. Experimental results are very close to designed performances.

Masataka Mitama

Papers

Direct conversion receiver capable of canceling DC offset voltages

Software portable telephone

Software portable telephone set

Direct conversion receiver capable of clearing DC offsed voltage

A Personal Transceiver Baseband LSI using Switched Capacitor Circuit Techniques