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:
Jan. 11, 1994
Filed:
Jun. 29, 1992
Edwin A Kelley, Los Angeles, CA (US);
Hughes Aircraft Company, Los Angeles, CA (US);
Abstract
A digital receiver apparatus and method, designed for multiple simultaneous users, digitizes a received analog RF signal and performs multiple frequency translations of the signal so that desired stations are grouped into a common frequency band separate from the remaining stations. This frequency band is then isolated, and the individual selected stations are digitally separated, demodulated and processed to provide multiple simultaneous outputs. The frequency translations are preferably performed initially on a time multiplexed basis. Isolated station separation is performed either by time multiplexing, or by the use of multiple phase or tan locked loops.