http://rdf.ncbi.nlm.nih.gov/pubchem/patent/CA-1203859-A
Outgoing Links
| Predicate | Object |
|---|---|
| assignee | http://rdf.ncbi.nlm.nih.gov/pubchem/patentassignee/MD5_ac40ffdd0f9b7563bab9d5dccaa8a6b3 |
| classificationCPCAdditional | http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/H04L2025-0349 |
| classificationCPCInventive | http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/H04L25-03057 |
| classificationIPCInventive | http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/H04L25-03 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/H04B3-04 |
| filingDate | 1984-03-30^^<http://www.w3.org/2001/XMLSchema#date> |
| grantDate | 1986-04-29^^<http://www.w3.org/2001/XMLSchema#date> |
| inventor | http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_484d426d4aaaf0d5f2f6fb2c5e485cd7 http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_1dfa26f388f313e34b2d9cd39f43c255 |
| publicationDate | 1986-04-29^^<http://www.w3.org/2001/XMLSchema#date> |
| publicationNumber | CA-1203859-A |
| titleOfInvention | Apparatus and method for adjusting the receivers of data transmission channels |
| abstract | ABSTRACT Filters are provided at the outputs of data transmission links to overcome attenuation distortion and phase distortion but such filters tend to increase the noise content of received signals. In the present invention a filter coupled to a linear baseband channel is constrained to be an all pass network, thus avoiding any noise enhancement at its output. The filter is adjusted by means of a channel estimator and an adjustment system to give the channel plus the filter an impulse-response that rises rapidly to its peak, thus simplifying the detection process needed for a satisfactory tolerance to noise. The required response is obtained by finding those roots (zeros) of the z transform of the sampled impulse-response of the channel, which have a modulus greater than some given value which is not less than unity, and adjusting the said filter such that, in the z transform of the sampled impulse-response of the channel and filter, the said roots are replaced by the complex conjugates of their reciprocals, the remaining roots of the channel z-transform being left unchanged. |
| priorityDate | 1983-03-30^^<http://www.w3.org/2001/XMLSchema#date> |
| type | http://data.epo.org/linked-data/def/patent/Publication |
Incoming Links
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