http://rdf.ncbi.nlm.nih.gov/pubchem/patent/JP-H05103027-A
Outgoing Links
| Predicate | Object |
|---|---|
| assignee | http://rdf.ncbi.nlm.nih.gov/pubchem/patentassignee/MD5_0950e9df7f0e1b73efee1bda859951ad |
| classificationIPCInventive | http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/H04L27-227 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/H04L27-22 |
| filingDate | 1991-10-03-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| inventor | http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_8cd50bda56d2ea23813026cc802bda58 |
| publicationDate | 1993-04-23-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| publicationNumber | JP-H05103027-A |
| titleOfInvention | Delay detection circuit |
| abstract | (57) [Abstract] [Purpose] In a differential detection circuit that demodulates an input digital phase-modulated wave that is phase-modulated by a multivalued transmission signal whose information is the relative phase difference with respect to the preceding phase, the relative accuracy of the multiplier, (EN) Provided is a differential detection circuit for a multi-level phase modulation signal which can simultaneously satisfy low power consumption and the integrity of a reception waveform shaping filter. [Structure] An input digital phase-modulated wave that is phase-modulated by a multi-valued transmission signal whose information is a relative phase difference with respect to a preceding phase is orthogonally demodulated at a local oscillation frequency substantially equal to the center frequency of the input modulated wave, and the input modulation After converting the signal to a baseband signal and performing waveform shaping, frequency conversion of the baseband signal to an intermediate frequency band by an arbitrary local oscillation signal, an amplitude signal proportional to the phase of the local oscillation signal, Multi-level detection is performed as the difference between the signal sampled and held by the sampling signal generated in synchronization with one cycle of the frequency-converted signal and the sample-held signal delayed by one data symbol as phase difference information. .. |
| isCitedBy | http://rdf.ncbi.nlm.nih.gov/pubchem/patent/JP-2008236143-A http://rdf.ncbi.nlm.nih.gov/pubchem/patent/US-5712879-A |
| priorityDate | 1991-10-03-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| type | http://data.epo.org/linked-data/def/patent/Publication |
Incoming Links
Total number of triples: 17.