| Predicate |
Object |
| assignee |
http://rdf.ncbi.nlm.nih.gov/pubchem/patentassignee/MD5_27659139551cffa64b25fb1f2735de1a |
| classificationCPCAdditional |
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/G11B5-5965
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/G11B2220-20 |
| classificationCPCInventive |
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/H04L25-4904
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/G11B5-59688
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/G11B5-5526
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/G11B20-10009
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/G11B27-3027 |
| classificationIPCInventive |
http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/H04L25-49
http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/G11B20-18
http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/G11B20-10
http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/G11B27-30
http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/G11B5-596
http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/G11B5-55
http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/G11B21-10
http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/H03M13-23 |
| filingDate |
1996-10-17-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| inventor |
http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_b9862486145aa5f709494353eb5682b9
http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_2c1f55db12284cdf3c672330fd3f4dfd
http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_db923db9981158bc47c8c3cb29c5a747 |
| publicationDate |
1997-05-01-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| publicationNumber |
CA-2207899-A1 |
| titleOfInvention |
Wide biphase digital servo information, detection, and estimation for disk drive using viterbi detection |
| abstract |
A synchronous sampling data detection channel includes a data transducer head (26) positioned by a servo-controlled actuator (32) over a recording track of a rotating data storage disk (16), a preamplifier (28) for receiving electrical analog signals magnetically induced by the data transducer head (26) from flux transitions present in at least the servo information field, a digital sampler (46) for sychronously sampling the electrical analog signals to produce digital samples, and a Viterbi detector coupled to receive digital samples from the synchronous sampling data detection channel for decoding 1/4 T coded wide biphase servo information patterns as maximum likelihood servo data sequences, wherein the wide biphase magnet patterns are arranged e.g. as ++-- magnet patterns for a binary zero information value and --++ magnet patterns for a binary one information value. |
| priorityDate |
1995-10-23-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| type |
http://data.epo.org/linked-data/def/patent/Publication |