Bizarre Patents
Mouse device with a built-in printer
A mouse device for use as an input device of a computer is provided that includes a housing in which recording paper is loadable, and a printer unit provided within the housing for printing on the recording paper print information received from the computer.
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| Number | Title | Issue Date |
| 6363118 | Apparatus and method for the recovery of compression constants in the encoded domain The system and method of the present invention provides an innovative technique and efficient hardware structure for recovering lost or damaged (lost/damaged) compression constants in the encoded domain. In one embodiment, a lost/damaged compression const... | 03/26/2002 |
| 6330292 | Reduced power matched filter A matched filter for use in a radio telephone receiver that receives Code Division Multiple Access (CDMA) signals. The matched filter produces precombinations of input values to significantly reduce the number of multiplication and addition operations, co... | 12/11/2001 |
| 6317466 | Wireless communications system having a space-time architecture employing multi-element antennas at both the transmitter and receiver The bit rate at which a digital wireless communications system communicates data in scattering environments may be significantly increased by using multiple antennas at both the transmitter and receiver and by decomposing the channel into m subchannels. I... | 11/13/2001 |
| 6301292 | Despreading circuit A despreading circuit which can reduce a circuit scale and power consumption is described. The circuit includes an A/D converter which converts a CDMA modulated analog signal to a digital signal of N bits, and a searcher which detects a synchronization ph... | 10/09/2001 |
| 6289056 | Broadband multicarrier modulator and corresponding programming method In a broadband multicarrier modulator, all processing within a modulator is replaced by a pre-computed table so that a modulated signal can be produced as a function of the modulating signal merely by reading the table. The carrier frequency of the modula... | 09/11/2001 |
| 6285719 | Digital phase sensitive rectification of AC driven transducer signals A method and a system for phase sensitive rectification of signals from transducers driven by an AC excitation signal will be disclosed. The method and system demand a very moderate calculation capacity, thereby to facilitate the use of low cost microproc... | 09/04/2001 |
| 6278724 | Receiver in a spread spectrum communication system having low power analog multipliers and adders A signal reception apparatus in the spread spectrum communication system requires only a small amount of circuitry and consumes a small amount of electric power. A quadrature detector decomposes received signals into in-phase components and quadrature com... | 08/21/2001 |
| 6275520 | Pseudo-noise generating apparatus A pseudo-noise generating apparatus capable of starting a pseudo-noise sequence from an arbitrary phase using compact processing circuitry. Tap selection patterns corresponding to a plurality of phase shift amounts are stored in advance in a ROM. By givin... | 08/14/2001 |
| 6256358 | Digital signal processing architecture for multi-band radio receiver A digital signal processing architecture for an audio system combines multiple functions in programmable and reconfigurable blocks to achieve an efficient use of hardware and chip area. AM, FM, and audio functions can be performed using the same reconfigu... | 07/03/2001 |
| 6246737 | Apparatus for measuring intervals between signal edges An apparatus for measuring a time interval between a start signal edge and a stop signal edge provides a stable clock signal as input to a delay line formed by a series of similar logic gates. The output signal of the last gate of the series is phase lock... | 06/12/2001 |
| 6233285 | Intrinsically safe cable drive circuit A cable drive circuit allows a transmitter in a process control system to drive signals across a capacitive length of cable. The cable drive circuit uses a charge pump to store charge, which is then used in conjunction with open drain outputs to transmit ... | 05/15/2001 |
| 6222895 | Phase-locked loop (PLL) circuit containing a sampled phase detector with reduced jitter A PLL circuit that includes a sampled phase detector, a filter and a voltage-controlled oscillator (VCO) is disclosed. The sampled phase detector compares an incoming reference signal, Vref, and the output of the VCO, VO, to generate... | 04/24/2001 |
| 6219377 | Method and apparatus for generating tones in a multi-tone modem A method and modem is provided for communicating data using a plurality of tones. The modem includes an IFFT unit capable of providing a signal comprising a plurality of tones, an interpolator capable of interpolating the signal to produce an interpolated... | 04/17/2001 |
| 6212244 | Fast response automatic gain control A two-step automatic-gain-control (AGC) loop for use with a receiver. An AGC amplifier amplifies a received signal. From an output signal from the AGC amplifier, a received-signal-strength-indicator (RSSI) circuit generates an RSSI signal proportional to ... | 04/03/2001 |
| 6212223 | Demodulation and correlation for spread spectrum communications In a spread spectrum communications system, method and apparatus are provided for reducing transmission error and power consumption despite an increase in sampling. There are serially provided 4k (k denotes a spreading factor) shift registers (1) to (4) t... | 04/03/2001 |
| 6212225 | Startup protocol for high throughput communications systems A startup protocol is provided for use in a communications system having a communications line with a master transceiver at a first end and a slave transceiver at a second end, each transceiver having a noise reduction system, a timing recovery system and... | 04/03/2001 |
| 6212239 | Chaotic dynamics based apparatus and method for tracking through dropouts in symbolic dynamics digital communication signals A communication system having a transmitter chaotic signal generator and a receiver chaotic signal generator which when uncoupled generate state signals along substantially identical chaotic attractor trajectories in an out of phase relation. A controller... | 04/03/2001 |
| 6212243 | Channel estimation performed at varying time intervals A process for receiving data in which the channel pulse responses are estimated, whereby a time interval between adjustments of a receiver to current channel pulse responses is varied and is adjusted to a change in transmission properties of transmission ... | 04/03/2001 |
| 6198781 | Apparatus and method of demodulating coded signal under OFDM transmission Modulated and coded signals sequentially transmitted by orthogonal frequency-division multiplexing transmission are calibrated on the basis of a reference signal to obtain sequential first calibrated signals. Amplitude and phase differences of the sequent... | 03/06/2001 |
| 6188715 | Frequency hopping system for intermittent transmission with receiver using individual tracking, FFT, and authentication A radio transmission system including many radio transmitters using frequency hopping carriers to intermittently transmit very short messages indicative of status of sensors associated with the transmitters. In operation, a time interval generator include... | 02/13/2001 |
| 6188736 | Near-optimal low-complexity decoding of space-time codes for fixed wireless applications An improved multi-antenna receiver is realized for detecting signals transmitted by a multi-antenna transmitter by summing signals received at the plurality of receiver antennas after multiplying each by a respective constant. The summed signal is applied... | 02/13/2001 |
| 6188738 | Clock extraction circuit Disclosed is a clock extraction circuit for extracting a clock signal which furnishes timing for discriminating a data signal, from the data signal. The clock extraction circuit has a timing extraction unit for extracting the clock signal from the data si... | 02/13/2001 |
| 6178210 | Method and apparatus for reducing data distortion and improving simulcast reception A selective call receiver unit (700) capable of reducing data distortion and improving simulcast reception includes a selective call receiver (20), a demodulator (30) coupled to the selective call receiver and a circuit (36 and 300) coupled to the demodul... | 01/23/2001 |
| 6169771 | Matched filter for spread spectrum communication systems and hybrid analog-digital transversal filter In one aspect, the present invention provides a low power consumption matched filter. The signal received at an input terminal is input to a shift register having stages equal to the spread code length number after conversion into digital signals in an A/... | 01/02/2001 |
| 6167080 | Control loop for adaptive equalization of a data signal A closed feedback loop controls the adaptive equalization of an incoming data signal received via a cable. Detected signal information about the positive and negative peaks of the incoming data signal during different windows in time is processed to gener... | 12/26/2000 |
| 6163579 | Broadband modem transformer hybird A broadband modem hybrid transformer couples a broadband modem to a plain-old-telephone (POTs) line. The hybrid includes a full bridge having an impedance matching network to reduce the transhybrid attenuation of the hybrid. The second matching network(s)... | 12/19/2000 |
| 6163581 | Low-power state-sequential viterbi decoder for CDMA digital cellular applications A method, apparatus, and a program storage device useful in performing computations to decode a convolutionally coded sequence without resorting the use of switching elements is disclosed. The method comprises the steps of computing a first branch metric ... | 12/19/2000 |
| 6157683 | Method and system for automatic invariancy compensation in digital communication receivers A method and system for compensating for code invariancies in a digital communication receiver is performed on demodulated signal data. A pre-Viterbi invariancy compensation is performed on the demodulated signal data to reverse a selected one of a number... | 12/05/2000 |
| 6157689 | Automatic speed detection for asynchronous serial communications The speed of asynchronous serial communications is detected by determining a duration of a data bit within an asynchronous data stream. The duration of the data bit is used to generate a clock frequency. The clock frequency is used to clock data from the ... | 12/05/2000 |
| 6151370 | Path-oriented decoder for signal-dependent noise A path-oriented approach is provided to determine surviving paths in a decoder. The paths that are retained as the surviving paths are some number, M, of the paths which have the smallest path metrics, even if two or more of those paths come into a given ... | 11/21/2000 |
| 6148039 | System and method for harmonic interference avoidance in carrier recovery for digital demodulation The present invention relates to an improved demodulator for locking onto and tracking a carrier. Harmonic frequencies are occasionally generated by demodulation circuitry. When this occurs, the harmonic frequencies can interfere with the demodulator's lo... | 11/14/2000 |
| 6137846 | AFC circuit for a frequency scanning FSK receiver An AFC circuit for a frequency scanning FSK receiver is so constructed that through put of data which can be transmitted is improved by shortening a header of a packet signal owing to the fact that frequency errors remaining when an object signal is caugh... | 10/24/2000 |
| 6134281 | Method and apparatus for calibration of a signal processing system utilizing digital down converters A calibration technique for a signal processing system, wherein a digital down converter is selected by a system controller for calibration. The digital down converter's settings are copied into a calibration digital down converter which mimics the operat... | 10/17/2000 |
| 6130907 | Interference detection for spread spectrum systems In spread spectrum systems, such as CDMA-based systems, the presence of even narrow-band interference, such as that caused by jamming at a particular frequency, can adversely affect all of the current users in the system. According to the present inventio... | 10/10/2000 |
| 6118832 | Multiple-sensor equalization in a radio receiver A method enabling a multiple sensor equalization in a radioelectrical receiver including a specified number of reception antennas, the method including the steps of estimating the transmission channel on each of the antennas; estimating the background noi... | 09/12/2000 |
| 6108386 | List Viterbi algorithms for continuous data transmission List Viterbi algorithms are provided for decoding blocks or frames of convolutional coded information transmitted and received in a continuous mode, i.e., without blockwise termination with a tail. Viterbi decoding is utilized to estimate, for each respec... | 08/22/2000 |
| 6104770 | Apparatus of detecting synchronization signal and method of detecting synchronization signal There is provided an apparatus for detecting a synchronizing signal, including a first circuit for extracting bit clocks from serial data received, a shift register for shifting the serial data bit by bit on the basis of the bit clocks, and latching the t... | 08/15/2000 |
| 6091779 | Process for the wireless transmitting of energy and data In the case of a process for the wireless transmission of energy and data between two parts, preferably the steering wheel and the steering column of a vehicle, having a transformer-type transmitter and consisting of a primary and secondary winding assign... | 07/18/2000 |
| 6088398 | Orthogonal frequency division multiplex systems A method and apparatus increase a maximum available bit rate on a single data link, in order to gain capacity within single cells. An orthogonal frequency division multiplex signal is filtered by a pulse shaping operation so as to suppress side lobes of t... | 07/11/2000 |
| 6078632 | Minimalized decommunication of serialized telemetry data A low cost dedicated hardware arrangement for reconstructing successive data frames from for example a commutated telemetry-communicated serial stream of digital and analog data, data which may be of unspecified words per data frame content. Encoding and ... | 06/20/2000 |
