Inventor · disambiguated record
Bengt R. Carlqvist
Also filed as: CARLQVIST BENGT R · CARLQVIST BENGT ROLAND
5 granted patents·34 citations·filing 1976–1982
78Inventor score
Files withERICSSON TELEFON AB L M5
Top patents by PatentIndex Score
5 records- 0157US4107475AReceiver apparatus for detection of two voice frequencies in a multifrequency tone signalERICSSON TELEFON AB L M·Filed 1977·Granted Aug 15, 1978·8 cites·4 claims
- 0251US4571719AFIR-Type balance filter incorporated in the transmitter-receiver unit in a telecommunication systemERICSSON TELEFON AB L M·Filed 1982·Granted Feb 18, 1986·10 cites·11 claims
- 0342US4082924AReference signal circuit in a receiver for detecting two frequencies in a multifrequency tone signalERICSSON TELEFON AB L M·Filed 1976·Granted Apr 4, 1978·4 cites·4 claims
- 0439US4539674AMethod of providing adaptive echo cancellation in transmission of digital information in duplex, and apparatus for performing the methodERICSSON TELEFON AB L M·Filed 1982·Granted Sep 3, 1985·8 cites·2 claims
- 0532US4573024APLL having two-frequency VCOERICSSON TELEFON AB L M·Filed 1982·Granted Feb 25, 1986·4 cites·3 claims
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Identity basis: PatentsView inventor disambiguation (2025Q4-odp release). How scoring works →