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Method And System For Mixing A Plurality Of Audio Sources In An FM Transmitter

a technology of a plurality of audio sources and a transmitter, applied in the field of fm communication, can solve problems such as increased cost and power consumption

Inactive Publication Date: 2008-09-25
AVAGO TECH WIRELESS IP SINGAPORE PTE
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Benefits of technology

[0011]A system and/or method for mixing a plurality of audio sources in an FM transmitter, substantially as show

Problems solved by technology

These portable electronic devices may require separate processing hardware and / or separate processing software, which may result in increased cost and power consumption.

Method used

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  • Method And System For Mixing A Plurality Of Audio Sources In An FM Transmitter
  • Method And System For Mixing A Plurality Of Audio Sources In An FM Transmitter
  • Method And System For Mixing A Plurality Of Audio Sources In An FM Transmitter

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Embodiment Construction

[0021]Certain aspects of the invention may be found in a method and system for mixing a plurality of audio sources in an FM radio transmitter. A wireless communication device may comprise a single chip with an integrated baseband processor, FM radio transmitter and one or more optional integrated transmitters and / or receivers. The wireless communication device may be enabled to handle a plurality of audio sources. For example the wireless communication device may process and transmit inter IC sound (I2S) signals, pulse code modulation (PCM) signals, generated tones and / or buffered audio streams. The plurality of audio sources may be clocked independently. In this regard, the plurality of audio streams may undergo rate adaptation based on a determined master clock. In addition, energy level in one or more of the plurality of audio streams may be scaled prior to frequency modulation to prevent over modulation. Moreover, the energy level of one or more of the plurality of audio streams...

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PUM

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Abstract

A plurality of digital audio signals from a plurality of sources utilizing different clocks may be processed and transmitted via an FM transmitter. The plurality of signals may have different sample rates which are converted to one same sample rate by a plurality of rate adapters. The plurality of rate adapters may be clocked at one same sample rate. The energy levels of the signals may be adjusted relative to one another and as a group. Energy level adjustments may improve FM modulation signal characteristics and audible energy levels for an end listener. The plurality of digital audio signals may be combined into one composite signal and FM modulated in the digital domain. The FM modulated signal may be converted to analog signal prior to being filtered, amplified and coupled to an antenna for transmission.

Description

CROSS-REFERENCE TO RELATED APPLICATIONS / INCORPORATION BY REFERENCE[0001]This application makes reference to and claims priority to U.S. Provisional Application Ser. No. 60 / 895,665 (Attorney Docket No. 18371US01), filed on Mar. 19, 2007, entitled “METHOD AND SYSTEM FOR A SINGLE CHIP INTEGRATED BLUETOOTH AND FM TRANSCEIVER AND BASEBAND PROCESSOR,” which is incorporated herein by reference in its entirety.[0002]This patent application makes reference to:U.S. patent application Ser. No. 11 / 832,844 (Attorney Docket No. 18371US02) filed on Aug. 2, 2007;U.S. patent application Ser. No. 11 / 832,858 (Attorney Docket No. 18558US02) filed on Aug. 2, 2007;U.S. patent application Ser. No. 11 / 846,989 (Attorney Docket No. 18560US02) filed on Aug. 29, 2007.[0003]Each of the above stated applications is hereby incorporated herein by reference in its entirety.[0004]The following Applications were filed within the last 2 months by at least one of the inventors named in the instant application:U.S. Prov...

Claims

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Application Information

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IPC IPC(8): H04L7/00H03M1/66
CPCH03L7/181H03L7/085
Inventor IBRAHIM, BRIMA BABATUNDEMAK, SIUKAIWALLEY, JOHNMARHOLEV, BOJKOTROST, THEODORE
Owner AVAGO TECH WIRELESS IP SINGAPORE PTE