Did You Know...
...that the first rickshaw was invented in 1869 by an American Baptist minister, the Rev. E. Jonathan Scobie, to transport his invalid wife around the streets of Yokohama?
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| Number | Title | Issue Date |
| 4667327 | Error corrector for a linear feedback shift register sequence Disclosed is an error corrector for a linear feedback shift register sequence employing an open loop linear feedback shift register (LFSR) having selected bits "tapped" and combined to form a feedback signal. The taps implement an orthogonal convolutional... | 05/19/1987 |
| 4667328 | Clocking circuit with back-up clock source A clocking system for providing periodic clocking or timing signals for use in an electronic circuit. The system includes a primary clock source, such as a crystal oscillator, that provides periodic clocking or timing signals at a predetermined frequency,... | 05/19/1987 |
| 4667329 | Diskette subsystem fault isolation via video subsystem loopback A data processing system includes a cathode ray tube (CRT) display subsystem and a floppy disk subsystem. The logic of both systems are verified by generating and transferring a fixed format stream of data bits from the CRT display subsystem to the floppy... | 05/19/1987 |
| 4667330 | Semiconductor memory device A semiconductor memory chip which has not only a memory array together with address decoding means, but also a self diagnosis means which functions to indicate a defective cell of said memory array has been found. Said self diagnosis means is mounted on t... | 05/19/1987 |
| 4667331 | Composite cavity laser utilizing an intra-cavity electrooptic waveguide device Optical functions such as Q-switching, mode locking, cavity dumping, and modulation are generated by a simple laser arrangement which includes a gain medium and an electrically controllable, optical waveguide device optically coupled to the gain medium. T... | 05/19/1987 |
| 4667332 | Semiconductor laser element suitable for production by a MO-CVD method A semiconductor laser element includes a first cladding layer of first conductivity type provided on a semiconductor substrate of the first conductivity type; a current blocking layer of a second conductivity type provided on the first cladding layer havi... | 05/19/1987 |
| 4667333 | Automatic clock recovery circuit An automatic clock recovery circuit is described. The automatic clock recovery circuit samples a received data signal with a recovered clock signal and advances or retards the recovered clock signal based on the comparison between the received data signal... | 05/19/1987 |
| 4667334 | System for broadcasting data packets originating from different sources A radio system broadcasts binary data packets that can be received in mob receivers. The initial parts of the packets are transmitted periodically. The prefix of each packet includes synchronizing information. The synchronization processing includes seek... | 05/19/1987 |
| 4667335 | Method of determining the diagnostic significance of the content of a volume of biological sample containing particles The present invention relates to a method for examining the content of a volume of biological sample containing particles to determine the diagnostic significance of that volume of biological sample. A number of aliquots of the sample are distributed and ... | 05/19/1987 |
| 4667336 | Automatic detection of seat belt usage A method and apparatus for encouraging driver's seat belt usage includes a system for detecting and recording each time a seat belt is used. Depending on the level of seat belt usage the driver earns discounts on car insurance premiums.... | 05/19/1987 |
| 4667337 | Integrated circuit having outputs configured for reduced state changes A logic arrangement for low power integrated circuits which reduces the number of state changes at the synchronously clocked parallel outputs of the integrated circuit. Logic is included which determines the number of output lines which would normally cha... | 05/19/1987 |
| 4667338 | Noise elimination circuit for eliminating noise signals from binary data A noise elimination circuit for eliminating noise signals from data given by a binary form includes a modulo in up/down counter having a first input for receiving binary data, a second input for receiving clock pulses and output for producing a counted si... | 05/19/1987 |
| 4667339 | Level sensitive latch stage A logic circuit that has a plurality of stages that are driven by a clock source that provides at least 2 clock signals and includes at least a single latch stage located between two of the plurality of stages is configured with field effect transistor te... | 05/19/1987 |
| 4667340 | Voice messaging system with pitch-congruent baseband coding An improved voice messaging system using LPC baseband speech coding. In standard LPC-based baseband speech coding techniques, LPC parameters plus a residual signal are transmitted. To save band width, the residual signal is filtered so that only a fractio... | 05/19/1987 |
| 4667341 | Continuous speech recognition system The probability of false recognition in a continuous speech recognition system is reduced by developing a similarity measure and path information at each time point (i, j), checking whether or not the path information at the time point (i, j) is within a ... | 05/19/1987 |
| 4667342 | Tunable receiver input circuit A tunable receiver input circuit consists of an emitter follower amplifying circuit with a resonant circuit connected between emitter and ground. The impedance of the resonant circuit is high at frequencies away from the resonant frequency. The mixer circ... | 05/19/1987 |
