| Predicate |
Object |
| assignee |
http://rdf.ncbi.nlm.nih.gov/pubchem/patentassignee/MD5_80787665b837ed3eb503bbcd27c0043a |
| classificationCPCInventive |
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/H03L7-08
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/H04N5-126 |
| classificationIPCInventive |
http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/H03L7-08
http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/H04N5-12 |
| filingDate |
1977-02-15^^<http://www.w3.org/2001/XMLSchema#date> |
| grantDate |
1978-01-10^^<http://www.w3.org/2001/XMLSchema#date> |
| inventor |
http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_75f0cd47e06061d61aafd598599d9608 |
| publicationDate |
1978-01-10^^<http://www.w3.org/2001/XMLSchema#date> |
| publicationNumber |
US-4068188-A |
| titleOfInvention |
Phase locked loop circuit |
| abstract |
Phase locked loop (PLL) circuit comprises, a phase detector including first and second cascade-connected differential pairs of transistors constituting an analog multiplier with each one of the differential pair transistors supplied with two inputs, a low pass filter for converting the detection output into a D.C. control voltage, and an emitter-coupled multivibrator including constant current sources for determining the oscillation frequency with a timing capacitor. The PLL circuit is provided with constant current adjusting means for variably setting or determining the current through a constant current source connected to the second differential pair of transistors and the currents through the current sources determining the oscillation frequency in a correlated manner through a common variable resistor. Thereby, dispersions in the loop gain of the PLL circuit are reduced. |
| isCitedBy |
http://rdf.ncbi.nlm.nih.gov/pubchem/patent/US-11018678-B1
http://rdf.ncbi.nlm.nih.gov/pubchem/patent/US-4167711-A
http://rdf.ncbi.nlm.nih.gov/pubchem/patent/US-10931286-B1
http://rdf.ncbi.nlm.nih.gov/pubchem/patent/US-4494080-A
http://rdf.ncbi.nlm.nih.gov/pubchem/patent/US-11575381-B1
http://rdf.ncbi.nlm.nih.gov/pubchem/patent/US-10826502-B1
http://rdf.ncbi.nlm.nih.gov/pubchem/patent/US-5430537-A
http://rdf.ncbi.nlm.nih.gov/pubchem/patent/US-2009219102-A1
http://rdf.ncbi.nlm.nih.gov/pubchem/patent/US-4327376-A
http://rdf.ncbi.nlm.nih.gov/pubchem/patent/US-10771069-B1
http://rdf.ncbi.nlm.nih.gov/pubchem/patent/US-11502694-B1
http://rdf.ncbi.nlm.nih.gov/pubchem/patent/US-11128305-B1
http://rdf.ncbi.nlm.nih.gov/pubchem/patent/US-11329655-B1 |
| priorityDate |
1976-02-16^^<http://www.w3.org/2001/XMLSchema#date> |
| type |
http://data.epo.org/linked-data/def/patent/Publication |