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| Number | Title | Issue Date |
| 7642938 | Gray code to sign and magnitude converter The present invention relates to Gray Codes and their conversion to sign and magnitude representation. Gray codes are used in flash ADCs (analogue to digital converters), which convert an analogue waveform into a sampled binary value. This can be done via a thermome... | 01/05/2010 |
| 7327292 | Bubble error rejecter in data converter A bubble error rejecter includes a cascade of front and rear voting sections for correcting bubble errors spanning multiple bits from interpolation. The front voting section generates first correction codes from first thermometer codes determined from preamplified s... | 02/05/2008 |
| 7321520 | Configurable length first-in first-out memory A configurable length first-in first-out (FIFO) memory includes a memory core for storing data, a write address counter connected to the memory core for counting locations for writing the data to be stored, and a read address counter connected to the memory core for... | 01/22/2008 |
| 7271757 | Encoder circuit and A/D conversion circuit An encoder circuit and A/D converter that can minimize the error of an encoder output with respect to all the possible combinations of thermometer codes are desired to be provided. To this end, an encoder circuit has a logic thereof configured to take a thermometer ... | 09/18/2007 |
| 7250891 | Gray scale voltage generating circuit A gray scale voltage generating circuit includes a first resistor ladder circuit, connected between a high voltage power supply terminal and a low voltage power supply terminal and having nodes for outputting respective reference voltages, a second resistor ladder c... | 07/31/2007 |
| 7242329 | Method and system for prioritizing data values for robust data representation Methods, systems and data structures select prioritized robust data values from a plurality of available data values formed by a plurality of data bits, each capable of exhibiting a bit value. Available data values are arranged into a gray code format, and alternate... | 07/10/2007 |
| 7167025 | Non-sequentially configurable IC Some embodiments of the invention provide a configurable integrated circuit (IC). The IC includes at least fifty configurable circuits arranged in an array having a plurality of rows and a plurality of columns. Each configurable circuit for configurably performing a... | 01/23/2007 |
| 7148825 | Data interface including gray coding A data interface includes a network interface processor, a transmitter, and a receiver. The network interface processor is operably coupled to transceive parallel data via a network connection. The transmitter is operably coupled to convert outbound parallel data fr... | 12/12/2006 |
| 7149956 | Converging error-recovery for multi-bit-incrementing gray code An L-bit gray-code input value can change by more N bits at a time. The lower N bits of the input are stored as a received least-significant-bits (LSB) while the upper bits are stored as a received most-significant-bits (MSB). A stored register holds the corrected, ... | 12/12/2006 |
| 7106226 | Determination of key bit positions in gray codes A key bit position of a first Gray code is determined based on the bit values of the first Gray code. The first Gray code and a second Gray code that differs from the first Gray code only in the key bit position correspond to two associated numbers that differ by on... | 09/12/2006 |
| 7071855 | Gray code conversion method and apparatus embodying the same A generalized Gray code converter includes a decimal-binary to intermediate-binary converter and an intermediate-binary to Gray code converter. The decimal-binary to intermediate-binary converter is operable to convert a sequence of sets of electrical signals encode... | 07/04/2006 |
| 7026965 | Separation enhanced Gray codes A Gray code decoder for decoding input numbers includes a first select circuit that selects an M-bit Gray code number from a M-bit Gray code having a one-bit separation I and a two-bit separation J. A second select circuit selects an N-bit Gray code number from a N-... | 04/11/2006 |
| 7019673 | Skew-tolerant gray codes Skew-tolerant Gray codes have the property that consecutive code words differ in only one co-ordinate position, and the additional property that, in each consecutive group of three consecutive code words, the first and third code words differ in only two adjacent co... | 03/28/2006 |
| 6970113 | Method for generation of even numbered reduced gray codes A cyclic reduced Gray code in n-many bits having 2k-many entries, for any natural number k, where 2(n−1) | 11/29/2005 |
| 6967500 | Electronic circuit with on-chip programmable terminations An electronic circuit with programmable terminations includes a circuit block, signal pads coupled to the circuit block, programmable termination circuits each associated with a corresponding one of the signal pads, and a reference circuit operative to generate one ... | 11/22/2005 |
| 6965331 | Conversion arrangement and method for converting a thermometer code The invention relates to an arrangement for converting a binary input signal corresponding to an n-bit thermometer code into a binary output code different therefrom, having a first number of OR gate circuits, into the inputs of wh... | 11/15/2005 |
| 6950040 | Coding apparatus, program and data processing method A coding apparatus, a program and a data processing method capable of attaining a high speed and a reduction of a computation amount in coding processing is provided, wherein coding portions for performing a left shift operation on a range and a lower limit value un... | 09/27/2005 |
| 6950138 | Gray code counter Conventionally, it is difficult to design the logic of a Gray code counter that can be used in interlaced counting. Even though interlaced counting is possible with a Gray code counter, the number of simultaneously changing bits increases greatly depending on the nu... | 09/27/2005 |
| 6940430 | Separation enhanced gray codes In general, in one aspect, the invention features a Gray code decoder for decoding input numbers according to a K-bit Gray code and a Gray code encoder for encoding input numbers according to the K-bit Gray code. The K-bit Gray code is constructed from a M-bit Gray ... | 09/06/2005 |
| 6937172 | Method and system for gray-coding counting A system for gray-code counting in an integrated circuit such as a programmable logic device uses a binary adder coupled to a binary counter output and to a selected binary offset value. The binary adder provides a binary sum that is converted to a gray code value b... | 08/30/2005 |
| 6876316 | Separation enhanced gray codes A method and computer program for generating a K-bit Gray code comprises (a) selecting a M-bit Gray code number from a M-bit Gray code having a one-bit separation I and a two-bit separation J; (b) selecting a N-bit Gray code number from a N-bit Gray code, wherein K=... | 04/05/2005 |
| 6845414 | Apparatus and method of asynchronous FIFO control An apparatus and method for controlling an asynchronous First-In-First-Out (FIFO) memory. The asynchronous FIFO has separate, free running read and write clocks. A number of n-bit circular Gray code counters are used to handshake the operation between read and write... | 01/18/2005 |
| 6809666 | Circuit and method for gray code to binary conversion An image sensor includes a sensor array, a data memory for storing pixel data and a pixel normalization circuit. The sensor array has a two-dimensional array of pixel elements and outputs digital signals as pixel data representing an image of a scene. The pixel data... | 10/26/2004 |
| 6801143 | Method and apparatus for generating gray code for any even count value to enable efficient pointer exchange mechanisms in asynchronous FIFO'S A method and apparatus for generating Gray code for any even count value to enable efficient pointer exchange mechanisms in asynchronous FIFO's. Allowing Gray code for any range of even count values provides the benefit of decreasing metastability when exchanging po... | 10/05/2004 |
| 6703951 | Analog to digital converter with encoder circuit and testing method therefor A high speed A/D converter includes a series of encoder sections for converting a thermometer code to a gray code and an error signal production section for detecting a babble error in the gray code and generating an error signal indicating such a babble ... | 03/09/2004 |
| 6703950 | Gray code sequences The present invention comprises a method of Gray encoding/decoding of binary and Gray code sequences that are less than full-length, resulting in a geometrically reduced storage requirement.... | 03/09/2004 |
| 6653956 | Analog to digital converter with encoder circuit and testing method therefor A high speed A/D converter includes a series of encoder sections for converting a thermometer code to a gray code and an error signal production section for detecting a babble error in the gray code and generating an error signal indicating such a babble ... | 11/25/2003 |
| 6617986 | Area efficient, sequential gray code to thermometer code decoder A Sequential Gray Code to Thermometer Code decoder circuit adapted for area efficient use at each pad of an integrated circuit chip for incrementally adjusting a digitally adjustable resistance for continuous or periodic adjustment of on-chip terminations... | 09/09/2003 |
| 6396424 | Bubble suppression method and apparatus A bubble suppression apparatus is disclosed comprising: a first set of AND gates, wherein each AND gate within the first set has an input configured to receive a binary thermometer code value and one or more adjacent binary thermometer code values; and a ... | 05/28/2002 |
| 6388602 | Bubble and meta-stability error immune gray-code encoder for high-speed A/D converters An encoding circuit for use with a comparator, includes a plurality of logic elements for receiving an input from a comparator, and a Gray code encoder for receiving an output from the plurality of logic elements. Both first and second type comparator err... | 05/14/2002 |
| 6348880 | Method and device for coding, decoding and transmitting information, using source-controlled channel decoding A method for coding information in which the information consisting of signal sequences is mapped to binary code words having in each case a plurality of bit positions in such a manner that the redundant information contained in the symbol sequences repre... | 02/19/2002 |
| 6308249 | Storing data in a grey code system To provide an improved memory in which code or data can be read out in the original order even when it is successively accessed by a processor of a successive type according to addressing in a grey code system and a method of storing code/data in such mem... | 10/23/2001 |
| 6225937 | Metastability resolved monolithic analog-to-digital converter An analog comparator compares an analog signal to be converted with an analog ramp signal. The output of the comparator enables a digital latch having a binary Gray code counter input. When the analog ramp equals the analog signal, the digital latch captu... | 05/01/2001 |
| 5778415 | Apparatus, systems and methods for controlling electronic memories Memory control circuitry is provided which includes circuitry for generating a sequence of gray code values. Counter circuitry is coupled to the gray code circuitry and controls the duration of assertion of each of the generated gray code values. Bus circ... | 07/07/1998 |
| 5754614 | Gray code counter A Gray Code counter includes first translator logic, binary incrementing/decrementing logic, second translator logic, and a clocked storage device. The first translator logic receives at an input a Gray Code number, Igray n:0! which the first... | 05/19/1998 |
| 5737142 | Servo track address channel code for PR4 magnetic recording A rate 5/7, d=0 channel code encodes a Gray code servo track address into channel data recorded on a magnetic disk; a PR4 sliding threshold Viterbi sequence detector detects the recorded servo track address upon read back; a cost effective d=0 decoder dec... | 04/07/1998 |
| 5633636 | Half-gray digital encoding method and circuitry A Half-Gray digital encoding technique is disclosed for use in a parallel analog-to-digital converter (ADC) that reduces the ADC's output errors. A thermometer code, proportional to the ADC's analog input, is provided to a decoder which produces 2n | 05/27/1997 |
| 5459466 | Method and apparatus for converting a thermometer code to a gray code A first subset of components of a first set of pairs of complementary differential electrical signals representative of a numerical value expressed in a multi-bit thermometer code, is processed in accordance with a first set of Boolean functions to produc... | 10/17/1995 |
| 5396240 | Missing pulse generator for gray code decoding This invention describes the use of a counter and digital logic to provide a timing pulse needed to decode Gray code position information on the tracks of a rotating disk storage media when the timing pulse is missing because the head of the disk drive is... | 03/07/1995 |
| 5329280 | Adjacent code system A digital counting circuit, including a binary counter supplying output sals to an adjacent code encoder that processes the received signals and transmits its output to a binary decoder. The encoder has a plurality of D-type flip-flop devices to which se... | 07/12/1994 |
