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:
May. 08, 2001
Filed:
Oct. 13, 1998
Alexander W. Hietala, Phoenix, AZ (US);
Arvind S. Arora, Chicago, IL (US);
Motorola, Inc., Schaumburg, IL (US);
Abstract
By employing AFC range extension, a high frequency communication device (,) can use a low cost, low accuracy crystal (,) in its reference oscillator (,). AFC range extension involves varying receive bandwidth of the communication device (,) to facilitate AFC or automatic frequency control. In particular, the receive bandwidth is set to a first, wide setting for AFC acquisition purposes (,). Frequency error associated with a received AFC signal is determined (,) and receive reception is adjusted (,) to reduce frequency error in the communication device (,). Once the frequency error is below a predetermined threshold (,), the receive bandwidth is set to a second setting different from the first setting for normal reception (,).