| Predicate |
Object |
| assignee |
http://rdf.ncbi.nlm.nih.gov/pubchem/patentassignee/MD5_306e8347e864c8debf76e4e3e0c3b689 |
| classificationCPCAdditional |
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/Y10S331-02
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/H03L7-095 |
| classificationCPCInventive |
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/H03H11-1217
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/H03L7-1075 |
| classificationIPCAdditional |
http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/H03L7-095 |
| classificationIPCInventive |
http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/H03H11-12
http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/H03L7-107 |
| filingDate |
1978-10-26^^<http://www.w3.org/2001/XMLSchema#date> |
| grantDate |
1980-05-27^^<http://www.w3.org/2001/XMLSchema#date> |
| inventor |
http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_655761976752b37d1fc4fb4ad688b6ef |
| publicationDate |
1980-05-27^^<http://www.w3.org/2001/XMLSchema#date> |
| publicationNumber |
US-4205277-A |
| titleOfInvention |
Phase locked loop with switchable filter |
| abstract |
Disclosed is a phase-locked loop which comprises a voltage controlled variable frequency oscillator (1), a phase comparator (2) having a cosine characteristic and receiving a reference oscillation as well as that supplied by the oscillator (1), and a low-pass filter (3) connected between the output of the phase comparator (2) and a frequency control input of the oscillator (1). n The transfer function of the low-pass filter (3) is switchable between two characteristics depending on the instantaneous phase difference between the reference oscillation and that supplied by the oscillator. The first low-pass filter transfer function is adapted to the phase-locked operation of the loop, while the second transfer function is adapted for frequency capture. |
| isCitedBy |
http://rdf.ncbi.nlm.nih.gov/pubchem/patent/US-4525686-A
http://rdf.ncbi.nlm.nih.gov/pubchem/patent/US-4835481-A
http://rdf.ncbi.nlm.nih.gov/pubchem/patent/US-5142255-A
http://rdf.ncbi.nlm.nih.gov/pubchem/patent/US-2005062550-A1
http://rdf.ncbi.nlm.nih.gov/pubchem/patent/US-4310805-A
http://rdf.ncbi.nlm.nih.gov/pubchem/patent/WO-8101782-A1
http://rdf.ncbi.nlm.nih.gov/pubchem/patent/JP-2016119677-A
http://rdf.ncbi.nlm.nih.gov/pubchem/patent/US-4993048-A
http://rdf.ncbi.nlm.nih.gov/pubchem/patent/US-4620159-A
http://rdf.ncbi.nlm.nih.gov/pubchem/patent/US-4365211-A
http://rdf.ncbi.nlm.nih.gov/pubchem/patent/US-6998923-B2
http://rdf.ncbi.nlm.nih.gov/pubchem/patent/US-4484152-A
http://rdf.ncbi.nlm.nih.gov/pubchem/patent/US-5142521-A |
| priorityDate |
1977-11-04^^<http://www.w3.org/2001/XMLSchema#date> |
| type |
http://data.epo.org/linked-data/def/patent/Publication |