Quotables
"The idea that cavalry will be replaced by these iron coaches is absurd. It is little short of treasonous."
Aide-de-camp to Field Marshal Haig ; At a tank demonstration, 1916
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 |
| 4755998 | Coded modulation system In a modulation system for sending digital symbols over a band-limited channel in accordance with a sequence of multi-dimensional points each composed of a plurality of two-dimensional modulation signal points, and each selected from an available alphabet... | 07/05/1988 |
| 4730322 | Method and apparatus for implementing a maximum-likelihood decoder in a hypercube network A method and a structure to implement maximum-likelihood decoding of convolutional codes on a network of microprocessors interconnected as an n-dimensional cube (hypercube). By proper reordering of states in the decoder, only communication between adjacen... | 03/08/1988 |
| 4710746 | Sequential decoding device for decoding systematic code A sequential decoding device for decoding a data expressed by a systematic code having a symbol memory, a maximum likelihood path decision circuit, and a path memory, includes: an overflow detection circuit for detecting an overflow of the symbol memory, ... | 12/01/1987 |
| 4641327 | Frame synchronization in trellis-coded communication systems Frame synchronization is accomplished in a trellis-coded communication system by causing the sequence of signal points that results when the receiver incorrectly determines the start of each frame to be an impermissible sequence, and detecting the existen... | 02/03/1987 |
| 4631735 | Coded modulation system with feedback A receiver for use in deciding which signal points were sent from a transmitter based on corresponding noise affected signals received over a channel, the transmitter including an encoder which encodes a stream of information symbols into the signal point... | 12/23/1986 |
| 4573155 | Maximum likelihood sequence decoder for linear cyclic codes A novel maximum likelihood sequence detector is provided for decoding linear cyclic error correction codes. The detector comprises one cyclic correlator for each two shaft sets of the code which have weights greater than one, and a serial correlator for d... | 02/25/1986 |
| 4500994 | Multi-rate branch metric processor for maximum-likelihood convolutional decoder A branch metric processor for use in a maximum-likelihood convolutional decoder accepts a set of soft-decision symbols, an indicator of a level of quantization thereof and a set of erase control signals and generates branch metrics for base code rates of ... | 02/19/1985 |
| 4462101 | Maximum likelihood error correcting technique A maximum likelihood error correcting technique for a digital communication in which a transmit side provides coded data with some redundancy through a convolutional coding circuit, and a receive side corrects transmission errors automatically through a m... | 07/24/1984 |
| 4404674 | Method and apparatus for weighted majority decoding of FEC codes using soft detection New techniques are disclosed which utilize soft detection to improve the performance of FEC codes. For an FEC code with minimum Hamming distance, the decoder utilizes hard-detected code symbols to obtain d independent estimates of each information bit, in... | 09/13/1983 |
| 4178550 | Method and apparatus to permit substantial cancellation of interference between a received first and second signal The present invention relates to method and apparatus for substantially reducing the effects of interference at a receiver between concurrently received first and second digital signals which use the same frequency spectrum. Interference between signals i... | 12/11/1979 |
| 4015238 | Metric updater for maximum likelihood decoder In a convolutional code decoder, a current received input corresponds to a last data state of a received sequence. Path metrics, respective correlations of the received sequence to each of a limited number of possible sequences, are determined to choose t... | 03/29/1977 |
