Quotables
"We live in a society exquisitely dependent on science and technology, in which hardly anyone knows anything about science and technology."
Carl Sagan
PatentStorm News
Make the Most of Our Site
See this month's Top Inventors and Most Cited Patents.
Stay on top of the latest innovations by subscribing to an RSS feed.
Registered users: Manage your profile.
| Number | Title | Issue Date |
| 4815033 | Method and apparatus for accessing a color palette synchronously during refreshing of a monitor and asynchronously during updating of the palette A method and apparatus for accessing a color palette in a color graphics system synchronously and asynchronously. Address and data registers coupled to the color palette are operated synchronously in a pipeline fashion using clock pulses having a pixel sc... | 03/21/1989 |
| 4764887 | Carry-bypass arithmetic logic unit An arithmetic logic circuit comprising a plurality of cells of conventional logic circuits for performing logical and arithmetic operations in combination with a kill circuit in each one of the cells which is responsive to bits of first and second operand... | 08/16/1988 |
| 4754434 | Switching plane redundancy A memory comprising apparatus for selecting redundant rows of memory cells wherein the addressing of a defective regular row of memory cells coupled to a first set of bit lines results in the selection of a redundant row of memory cells coupled to a secon... | 06/28/1988 |
| 4751406 | ECL circuit with output transistor auxiliary biasing circuit An ECL circuit comprising an output transistor having a base, a resistor coupled to the base, a first circuit responsive to a deselect signal OE for drawing a first current through the resistor and a second circuit responsive to the deselect signal OE for... | 06/14/1988 |
| 4748580 | Multi-precision fixed/floating-point processor A single-chip fixed/floating-point arithmetic processor, a three port ALU, a plurality of storage registers R, S, F0 and F1, a constant store circuit and an output data register F. Two of the storage registers R and S are provided for storing 64-bit input... | 05/31/1988 |
| 4745304 | Temperature compensation for ECL circuits An ECL circuit comprising an output transistor having a high output voltage VOH guard band and a low output voltage VOL guard band with a temperature compensating network coupled to the output transistor for causing the high level output voltage VOH and l... | 05/17/1988 |
| 4692888 | Method and apparatus for generating and summing the products of pairs of numbers An apparatus is described for summing the products of a predetermined number of successive pairs of numbers. In the apparatus there is provided an arithmetic unit having a first and a second input and an output, a first, a second and a third register and ... | 09/08/1987 |
| 4680738 | Memory with sequential mode A memory comprising a plurality of memory cells, a column decoder, a row decoder, a plurality of shift registers and a multiplexer is provided for addressing the memory cells in a conventional manner or in a high-speed sequential mode. In the sequential m... | 07/14/1987 |
| 4667326 | Method and apparatus for error detection and correction in systems comprising floppy and/or hard disk drives A method and apparatus for generating a check sum and a syndrome for detecting errors in a series of bytes comprising a plurality of stages, each stage comprising a plurality of networks of exclusive OR gates, a memory and an exclusive OR gate for exclusi... | 05/19/1987 |
| 4667286 | Method and apparatus for transferring data between a disk and a central processing unit A method and apparatus for transferring data between a disk and a CPU is disclosed comprising a pair of toggling header buffers and a pair of toggling data buffers. In operation, data is transferred between a sector on a disk and one of the data buffers u... | 05/19/1987 |
| 4621341 | Method and apparatus for transferring data in parallel from a smaller to a larger register A method and apparatus for transferring data in parallel from a smaller to a larger register is described, in which the larger register comprises a first and a second set of master and slave latches with a one shot employed for clocking the master latches... | 11/04/1986 |
| 4618898 | Method and apparatus for reading a disk A method and apparatus for reading data from a disk having missing or unreadable field address marks. Expected address marks are searched for within a time window which is generated using a counter. When an expected address mark is generated at any time w... | 10/21/1986 |
| 4577125 | Output voltage driver with transient active pull-down An output voltage driver apparatus for an ECL circuit driving a capacitive load is disclosed which comprises an emitter follower means having an output emitter and a reference emitter. The output emitter is connected to the capacitive load. A pull-down tr... | 03/18/1986 |
| 4547881 | ECL Logic circuit with a circuit for dynamically switchable low drop current source An ECL circuit with a bias circuit is provided which tracks the gain and operating characteristics of other transistors in an integrated circuit. The bias circuit employs the bandgap reference voltage, VCS, as the power source. By a transistor ... | 10/15/1985 |
| 4539493 | Dynamic ECL circuit adapted to drive loads having significant capacitance A dynamic ECL circuit is provided which drives loads having significant capacitance. The dynamic ECL circuit may utilize single level or multiple level logic and may be configured, for example, as an OR/NOR gate. A capacitor is placed between the base of ... | 09/03/1985 |
| 4458518 | Apparatus and method for calibrating a photoplethysmograph An apparatus for calibrating a photoplethysmograph system comprising a white card mounted in the cone of a speaker. The card is mounted a predetermined distance from a photoplethysmograph sensor for providing an output from the sensor corresponding to the... | 07/10/1984 |
| 4433300 | FM Demodulator including automatic threshold control circuit An FM demodulating apparatus with a comparator. The comparator is responsive to a threshold signal and an input signal for providing an output signal which changes polarity each time the difference between the threshold signal and the input signal exceeds... | 02/21/1984 |
| 4429559 | Strip processing apparatus A recirculating strip processing apparatus is described comprising a recirculating stripper chain, a recirculating tool chain, a recirculating carrier follower chain and a recirculating die chain in a removable cassette for continuous processing of integr... | 02/07/1984 |
| 4410395 | Method of removing bulk impurities from semiconductor wafers A method of removing bulk impurities from a semiconductor wafer is described comprising the steps of lapping the front and back surfaces of the wafer to remove 35 to 40 microns of material therefrom and to make the surfaces parallel, heating the wafer at ... | 10/18/1983 |
| 4409592 | Multipoint packet data communication system using random access and collision detection techniques In a data communications systems having a communications channel (3) for interconnecting a plurality of transceivers (1) and (2), each of said transceivers (1) and (2) including means (80) for transmitting a signal having transitions, there is provided a ... | 10/11/1983 |
| 4396979 | Microprocessor with improved arithmetic logic unit data path A microprocessor for facilitating the execution of instructions which require repetitive shift and arithmetic logic unit operations comprises an arithmetic logic unit having a first and a second input and an output, a plurality of registers, at least one ... | 08/02/1983 |
| 4393476 | Random access memory dual word line recovery circuitry A discharge circuit for rapidly discharging the word lines of random access memories to thereby prevent erroneous reading from or writing into the memory during periods when the word lines are in a mid-state transition between selected and deselected volt... | 07/12/1983 |
| 4388855 | Firearm pneumatic slide decelerator assembly A slide decelerator assembly for a firearm (1), having a slide (2) which moves rearwards when the firearm (1) is fired is described comprising means (12, 13) for compressing air in response to said rear movement of said slide 2for retarding said rear slid... | 06/21/1983 |
| 4384353 | Method and means for internal error check in a digital memory A semiconductor digital memory such as a charge coupled device is provided with error detection capability. Error logic responsive to a group of data on the input bus generates a first error code which is stored in memory along with the group of data. Whe... | 05/17/1983 |
| 4377844 | Address translator A memory addressing apparatus (1,20,90) is described comprising a circuit (5,26,96) responsive to a current external memory address on an input line (2,21,91) and a signal generated by an auxiliary memory circuit (8,29,93) for providing a current internal... | 03/22/1983 |
| 4374011 | Process for fabricating non-encroaching planar insulating regions in integrated circuit structures A method for fabricating insulating regions in an integrated circuit structure is disclosed in which the insulating regions do not encroach upon the surrounding integrated circuit and in which a substantially planar surface across the top of the insulatin... | 02/15/1983 |
| 4370737 | Sense amplifier and sensing methods A sense amplifier for determining the binary logic state of a dynamic memory cell (11x,y) preamplifies an initial voltage difference established between a first input line (17y) coupled to the memory cell (11x,y) and a fir... | 01/25/1983 |
| 4368420 | Supply voltage sense amplifier A temperature-compensated reference voltage circuit includes a transistor having a positive temperature coefficient of current. A circuit for establishing a predetermined current in the positive-temperature-coefficient-of-current transistor is connected t... | 01/11/1983 |
| 4355938 | Automatic work piece changer for a milling machine and the like An automatic work piece changer for a milling machine and the like is described. In the work piece changer there is provided a work piece hopper (2) for storing a plurality of work pieces to be movable, a carriage assembly (3) for removing work pieces fro... | 10/26/1982 |
| 4354257 | Sense amplifier for CCD memory A sense amplifier for use with a charge coupled device in which capacitive coupled charge is employed with a flip-flop circuit to accelerate sense and readout. Operation of the amplifier is effected with two external clocks and two internally generated cl... | 10/12/1982 |
| 4352492 | Data storage apparatus A video game apparatus for connection to a standard television set and including an electronics-containing console having a plurality of parameter selection buttons and a chute mechanism for receiving a replaceable cartridge-containing supplementary elect... | 10/05/1982 |
| 4346680 | Apparatus for and method of lubricating a distributor for an internal combustion engine In an apparatus having a rotatable shaft supported by bearing members in a housing wherein said bearing members are suspended above an oil bath from which oil is splashed on said housing, an improvement for lubricating the bearing members comprising a met... | 08/31/1982 |
| 4335457 | Method for semiconductor memory testing Semiconductor memory devices are tested by using a special purpose computer which uses simple test patterns to determine the weakest bits of the device and then tests only these relatively few "weak bits" and structurally and operationally adjacent bits u... | 06/15/1982 |
| 4334157 | Data latch with enable signal gating A data latch of the kind having at least two operative modes, a transmitting or transparent mode or condition for transmitting data signals through the latch, and a latching mode or condition for latching and temporary storage by feedback of data signals ... | 06/08/1982 |
| 4330723 | Transistor logic output device for diversion of Miller current A transistor logic output device is provided with an active element discharging transistor coupled between the base of the pulldown element transistor and ground or low potential for actively controlling a route to ground or low potential for diverting an... | 05/18/1982 |
| 4326270 | Preset circuit for information storage devices An electronic circuit for simultaneously erasing all the information stored in an electronic information storage device and entering a predetermined new pattern of information into the storage device comprises a plurality of bistable semiconductor cells w... | 04/20/1982 |
| 4324216 | Ignition control system with electronic advance An electronic advance and ignition control system incorporating the advance utilizes a fixed advance threshold compared with amplitude of an RPM sensitive input waveform from a distributor in combination with a timing circuit, which establishes a predeter... | 04/13/1982 |
| 4321533 | Printed circuit board test fixture having interchangeable card personalizers A printed circuit board test fixture having interchangeable top plates (card personalizers). The test fixture is provided with a vacuum well having a field of probes mounted therein. The field of probes corresponds to the sum of all test points of a famil... | 03/23/1982 |
| 4316102 | Input stage using junction field effect transistors for biasing In a bias circuit including at least a pair of bipolar transistors interconnected to function as active loads, two junction field effect transistors are interconnected such that the source of one transistor is connected to the emitter of the first of the ... | 02/16/1982 |
| 4311930 | Voltage protection circuit for binary data-storage device A voltage protection circuit for controlling an input data signal on a signal-carrying line to a binary data-storage device having an input line for receiving the input data signal comprises two transistors in series having current-control electrodes coup... | 01/19/1982 |
