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:
Jun. 05, 2001
Filed:
Jun. 03, 1998
Christopher Peter LaRosa, Lake Zurich, IL (US);
Michael John Carney, Mundelein, IL (US);
Christopher John Becker, Palatine, IL (US);
Motorola, Inc., Schaumburg, IL (US);
Abstract
By time-sharing demodulator hardware between a primary data path (,), a power control data path (,), and a received signal strength indicator (RSSI) path (,), an entire power control data path (,) can be implemented in a demodulator (,) of a spread spectrum subscriber unit receiver with a low increase in gate count. The primary data path (,) and the power control data path (,) time-share a complex conjugate generator (,), a complex multiplier (,), and a real component extractor (,). Due to timing requirements, though, the channel estimation filter (,) of the primary data path cannot be time-shared with the power control data path. Instead, dynamic coefficient scaling is added to an infinite-duration impulse response (IIR) filter in the RSSI path (,) so that the IIR filter (,) with dynamic coefficient scaling can be time-shared between the RSSI path (,) and the power control data path (,).