http://rdf.ncbi.nlm.nih.gov/pubchem/patent/CA-1258499-A
Outgoing Links
| Predicate | Object |
|---|---|
| assignee | http://rdf.ncbi.nlm.nih.gov/pubchem/patentassignee/MD5_5547f741b25666fc4ae5195cf71a979b |
| classificationCPCInventive | http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/G01R29-0871 http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/H03G7-001 http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/H03F3-04 http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/H03F3-45071 |
| classificationIPCInventive | http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/H03G7-00 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/H03F3-45 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/G01R29-08 |
| filingDate | 1987-06-03^^<http://www.w3.org/2001/XMLSchema#date> |
| grantDate | 1989-08-15^^<http://www.w3.org/2001/XMLSchema#date> |
| inventor | http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_3b54eddffb45dc02340c3b4b92f41d6b |
| publicationDate | 1989-08-15^^<http://www.w3.org/2001/XMLSchema#date> |
| publicationNumber | CA-1258499-A |
| titleOfInvention | Intermediate frequency amplification circuit capable of detecting a field strength with low electric power |
| abstract | Abstract of the Disclosure: In an intermediate frequency amplification circuit comprising first through n-th differential amplifiers which are connected in cascade to one another with the first amplifier supplied with a circuit input signal and which successively produce amplifier output signals with an n-th amplifier output signal produced as a circuit output signal from the n-th amplifier, first through (n+1)-th rectification circuits are supplied with the respective amplifier output signals with the circuit input signal given to the first rectification circuit. Each rectification circuit comprises a differential unit comprising at least one pair of transistors have different emitter areas from each other to rectify each amplifier output signal and to produce a collector current which is summed up by an adder circuit to be produced as a field strength signal. The rectification circuits may carry out either half-wave rectification or full-wave rectification. A plurality of the above-mentioned pairs may be included in each rectification circuit. |
| priorityDate | 1986-06-04^^<http://www.w3.org/2001/XMLSchema#date> |
| type | http://data.epo.org/linked-data/def/patent/Publication |
Incoming Links
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