Invention Grant
US07787560B2 Smart antenna interface using only digital I/O supporting both mode A and mode B antenna operation as per CEA 909 standard using a single digital counter
有权
仅使用数字I / O的智能天线接口，使用单个数字计数器，根据CEA 909标准支持模式A和模式B天线操作
- Patent Title: Smart antenna interface using only digital I/O supporting both mode A and mode B antenna operation as per CEA 909 standard using a single digital counter
- Patent Title (中): 仅使用数字I / O的智能天线接口，使用单个数字计数器，根据CEA 909标准支持模式A和模式B天线操作
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Application No.: US11931518Application Date: 2007-10-31
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Publication No.: US07787560B2Publication Date: 2010-08-31
- Inventor: Towfique Haider , Kazunobu Shin
- Applicant: Towfique Haider , Kazunobu Shin
- Applicant Address: US TX Dallas
- Assignee: Texas Instruments Incorporated
- Current Assignee: Texas Instruments Incorporated
- Current Assignee Address: US TX Dallas
- Agent Robert D. Marshall, Jr.; W. James Brady; Frederick J. Telecky, Jr.
- Main IPC: H04L27/00
- IPC: H04L27/00
Abstract:
This invention samples and transmits the CEA-909 standard smart antenna analog pulse train waveforms using only a digital I/O pin for both mode A and mode B operation. This invention implements the smart antenna interface based on a single digital programmable counter. This counter is programmable so that it can tolerate or produce wide variation of symbol width.
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