Gain and phase correction in a dual branch receiver
CA 1293302 C · Owner: N.V. Philips Gloeilampenfabrieken · Inventors: Chung, Kah-Seng
Overview
Its claims, description and drawings are in the Canadian Patents Database.
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PHN 12.236, Abstract, "Gain and Phase Correction in a Dual Branch Receiver" A dual branch receiver consists first and second branches (12, 14) respectively comprising first and third mixers (16 20) and, second and fourth mixers (17, 21). An input terminal (10) for a signal having a carrier frequency (.omega.c) is connected to the first and second paths. A first local oscillator frequency (.omega.o) is supplied in quadrature to the first and second mixers (16 17), where.omega.c-.omega.o = .DELTA..omega. and .DELTA..omega.is of the order of 2.pi. x 100 radians/sec. A second local oscillator (30) frequency is supplied in quadrature to the third and fourth mixers (20, 21). An output signal is …
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Listed from its CIPO record in Patent Yard's archive of Canadian patents past their term. Its claims, description and drawings are in the CIPO record and on Google Patents, and the Claude kit works from them.
Why it's free to use
- Granted December 17, 1991. A Canadian patent filed before October 1, 1989 lasted 17 years from grant, so its term ended December 17, 2008.
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Everything on this page comes from the CIPO record linked above. Contains information licensed under the Open Government Licence – Canada.