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:
Jul. 22, 2003
Filed:
Nov. 28, 2001
Applicant:
Inventors:
Assignee:
Motorola, Inc., Schaumburg, IL (US);
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
H04L 2/716 ;
U.S. Cl.
CPC ...
H04L 2/716 ;
Abstract
Apparatus for receiving a carrier signal modulated by a wanted signal, the modulated carrier signal occupying one of a plurality of channels whose central frequencies are separated from one another by a fixed frequency referred to as the channel spacing, the apparatus including a local oscillator for generating first and second signals at a frequency which is not an integral multiple of half the channel spacing whereby when the received carrier signal is mixed with the first and second signals, a complex, digital Very Low Intermediate Frequency (VLIF) signal is generated in which the wanted signal is centred about a VLIF which is slightly larger than half the channel spacing.