http://rdf.ncbi.nlm.nih.gov/pubchem/patent/GB-2075806-A
Outgoing Links
| Predicate | Object |
|---|---|
| assignee | http://rdf.ncbi.nlm.nih.gov/pubchem/patentassignee/MD5_59f81d80078c46da87a88f6b218c6330 |
| classificationCPCInventive | http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/H04L25-03133 |
| classificationIPCInventive | http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/H03H21-00 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/H04B3-10 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/H04L25-03 |
| filingDate | 1979-04-12-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| publicationDate | 1981-11-18-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| publicationNumber | GB-2075806-A |
| titleOfInvention | Adaptive equalizer |
| abstract | An automatic adaptive equalizer operates on a test pattern including a carrier-only period, a clock-only period and a single test impulse. The equalizer employs a transversal filter under control of a microprocessor 23. Samples Xi and Yi of in-phase and quadrature phase components of the received impulse response are cross-correlated and auto-correlated to form elements of a complex matrix equation describing the optimum equalizer tap settings Cpl and Cql etc. The microprocessor performs a special iterative operation utilizing elements of this equation to rapidly and exactly calculate the optimum initial settings for the tap constants. The clock-only portion of the test pattern is analyzed to set a sampling clock to sample the received impulse so that the tap constant calculation can be carried out within the duration of the received impulse. Initial equalization can be achieved in a time of about 30 milliseconds at a data rate of 9600 bits per second. <IMAGE> |
| isCitedBy | http://rdf.ncbi.nlm.nih.gov/pubchem/patent/WO-2007015799-A2 http://rdf.ncbi.nlm.nih.gov/pubchem/patent/WO-2007015799-A3 |
| priorityDate | 1978-04-26-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| type | http://data.epo.org/linked-data/def/patent/Publication |
Incoming Links
Total number of triples: 22.