Invention Grant
- Patent Title: System and method of routing audio signals to multiple speakers
- Patent Title (中): 将音频信号路由到多个扬声器的系统和方法
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Application No.: US11170487Application Date: 2005-06-29
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Publication No.: US07864962B2Publication Date: 2011-01-04
- Inventor: Matthew Henson , Daniel Mulligan
- Applicant: Matthew Henson , Daniel Mulligan
- Applicant Address: US TX Austin
- Assignee: Sigmatel, Inc.
- Current Assignee: Sigmatel, Inc.
- Current Assignee Address: US TX Austin
- Agency: Toler Law Group
- Main IPC: H04H40/81
- IPC: H04H40/81 ; H04B3/00

Abstract:
A method and system for utilizing multiple speakers in a portable electronic device is disclosed. The method includes receiving an input at a user interface of a portable electronic device, switching a first and second speaker in a stereo configuration to a mono configuration by routing a first digital to analog converter (DAC) output to both the first and second speaker in response to the input and coupling a third speaker to a second DAC to receive a first audio signal that is responsive to the input. The system includes a first digital to analog converter coupled to a first speaker, a second DAC coupled to a second speaker, and a third speaker. The system further includes switching logic coupled to the first and second DACs. The switching logic is responsive to an input signal provided by a user interface of a portable device. In response to an input signal from the user interface, the switching logic couples the first and second speakers to the first DAC and the third speaker to the second DAC.
Public/Granted literature
- US20070005161A1 System and method of routing audio signals to multiple speakers Public/Granted day:2007-01-04
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