Method and system for a multi channel and search global position system signal processor

US5535237A · kind A · utility

Assignee

• TEXAS INSTRUMENTS INCORPORATED · US

Inventors

• Leonard John LaPadula, III · Rochester, US
• George William Pawlowski · Carrollton, US
• David W. Rekieta · Allen, US
• Hugh Logan Scott · Breckenridge, US
• Chyi H. Lu · Plano, US
• John P. Volpi · Garland, US
• Mitchel B. Stiles · Plano, US

Key dates

• Filing date: Feb 4, 1994
• Grant date: Jul 9, 1996
• Expiry date: Feb 4, 2014

Classification

• Technology area (CPC H): Electricity
• CPC primary: H04B2201/70715
• WIPO field: Measurement
• WIPO sector: Instruments

Abstract

There is disclosed a multi channel GPS digital signal processor on a single IC. Each channel contains circuitry to process L1 or L2 P(Y) and C/A-code signals. In addition a search processor is included to achieve fast signal acquisition. Low power adder/accumulators have been designed to provide for a high precision digital oscillator whose output is synchronous to a high speed clock. The IC contains a full low power null detector and eight correlators to aid in signal acquisition.