The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Sep. 28, 1999
Filed:
Dec. 05, 1996
Khiem V Cai, Brea, CA (US);
Allan L Levine, Jr, Newbury Park, CA (US);
Raytheon Company, Lexington, MA (US);
Abstract
A digital signal processor is provided which is compatible with a large variety of modulation processes (e.g., BPSK, QPSK,.pi./4 QPSK, M-ary FSK and M-ary PSK). The processor has a transmit section which can convert input data streams into baseband I and Q signals and a receive section which can recover data streams from input baseband I and Q signals. The transmit section includes a direct I/Q modulator and a common phase modulator and the receive section includes an M-FSK to M-PSK converter and a common phase demodulator. The processor is particularly suited for realization as an application-specific integrated circuit (ASIC) which can be integrated in multiband, multimode transceivers.