Method and System for Audio CODEC Voice ADC Processing

• US 20110199242A1
• Filed: 04/28/2011
• Published: 08/18/2011
• Est. Priority Date: 11/30/2006
• Status: Active Grant

• Current Assignee: Avago Technologies International Sales Pte Limited (Broadcom, Inc.)
• Original Assignee: Broadcom Corporation (Broadcom, Inc.)
• Inventors: Chang, Li Fung, Kong, Hongwei
• Granted Patent: US 8,169,344 B2
• Time in Patent Office: Days
• US Class Current: 341/56
• CPC Class Codes: H03M 3/496 Details of sampling arrangements or methods

Abstract

Methods and systems for audio CODEC voice ADC processing are disclosed. Aspects of one method may include using a decimating filter that may be enabled to generate 13 MHz, 9-level digital output signal from a 26 MHz, 3-level digital input signal. The 13 MHz, 9-level digital output signal may be processed for RF transmission, for audio output to an output device, and/or utilized for testing by a test fixture, for example. The 13 MHz, 9-level digital output signal may be further processed to generate a 6.5 MHz, 33-level digital signal. The 6.5 MHz, 33-level digital signal may be converted to an analog signal, and processed for audio output and/or testing. The 13 MHz, 9-level digital output signal may also be processed to generate a 40 KHz, 17-bit digital signal, which may be communicated to a test equipment or further processed for RF transmission.

Claims

1. A method for processing signals, the method comprising:

decimating a multi-level digital input signal by M, where M is an integer that is greater than or equal to 2; and

generating an output digital signal having a number of signal levels greater than said multi-level digital input signal by processing said decimated multi-level digital input signal.

2-33. -33. (canceled)