
基本信息:
- 专利标题: 具有数字级和模拟级的音频开关
- 专利标题(英):An audio switch for performing audio signal switching
- 申请号:CN200880100359.9 申请日:2008-07-21
- 公开(公告)号:CN101790861A 公开(公告)日:2010-07-28
- 发明人: 贝特朗·勒姆拉特 , 克劳迪奥·谢特 , 让-克洛德·比尼
- 申请人: NXP股份有限公司
- 申请人地址: 荷兰艾恩德霍芬
- 专利权人: NXP股份有限公司
- 当前专利权人: NXP股份有限公司
- 当前专利权人地址: 荷兰艾恩德霍芬
- 代理机构: 北京天昊联合知识产权代理有限公司
- 代理人: 陈源; 张天舒
- 优先权: 07113159.3 2007.07.26 EP
- 国际申请: PCT/IB2008/052921 2008.07.21
- 国际公布: WO2009/013703 EN 2009.01.29
- 进入国家日期: 2010-01-25
- 主分类号: H04H60/04
- IPC分类号: H04H60/04
The invention relates to an audio switch (1, 1') for performing audio signal switching, which audio switch (1, 1') comprises a plurality of input ports (10, 11, 12, 13) for obtaining digitised audio input signals (CH1L, CH1R, CH2L, CH2R), a plurality of output ports (301, 302, 303, 304, 305, 306, 307) for outputting a number of analogue audio output signals (HFR1, HFR2, HFR3, HFR4, RCV, EAR1, EAR2), and a digital matrix first stage (2, 2') for switching a digitised audio input signal (CH1L, CH1R, CH2L, CH2R), derived from one or more of the input ports (10, 11, 12, 13), to any one of a plurality of digital stage output ports (23, 24, 25, 26) according to a specified configuration, to give a number of digital stage output signals (DS1L, DS1R, DS2L, DS2R). The audio switch further comprises a plurality of digital-to-analogue converters (31, 32), connected to the digital stage output ports (23, 24, 25, 26) of the digital matrix first stage (2, 2'), for performing digital-to-analogue conversion on a number of the digital stage output signals (DS1L, DS1R, DS2L, DS2R) to obtain a number of analogue audio signals (33, 34, 35, 36), and an analogue second stage (3) for switching a number of the analogue audio signals (33, 34, 35, 36) to one or more of the analogue audio output ports (301, 302, 303, 304, 305, 306, 307) according to a specified configuration. The invention also describes a method of performing audio signal switching, and an electronic device (5).
IPC结构图谱:
H | 电学 |
--H04 | 电通信技术 |
----H04H | 广播通信 |
------H04H60/00 | 用于与广播信息或广播时空直接相关的广播应用装置;广播相关系统 |
--------H04H60/02 | .用于生成广播信息的装置;用于生成与广播信息或广播时空直接相关的广播相关信息的装置;用于同时生成广播信息和广播相关信息的装置 |
----------H04H60/04 | ..演播室设备,演播室的互连 |