Invention Grant
US07657919B2 Single wire return device including a QAM modulator for downstream IP signals
有权
单线返回装置包括用于下行IP信号的QAM调制器
- Patent Title: Single wire return device including a QAM modulator for downstream IP signals
- Patent Title (中): 单线返回装置包括用于下行IP信号的QAM调制器
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Application No.: US10821476Application Date: 2004-04-09
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Publication No.: US07657919B2Publication Date: 2010-02-02
- Inventor: David B. Alsobrook , William E. Wall , William C. Versteeg , Ajith N. Nair
- Applicant: David B. Alsobrook , William E. Wall , William C. Versteeg , Ajith N. Nair
- Applicant Address: US GA Lawrenceville
- Assignee: Scientific—Atlanta, LLC
- Current Assignee: Scientific—Atlanta, LLC
- Current Assignee Address: US GA Lawrenceville
- Agency: Merchant & Gould
- Main IPC: H04N7/173
- IPC: H04N7/173
Abstract:
Systems and methods are disclosed for receiving IP video and audio signals at a subscriber's premises. A QAM modulator then modulates the IP signals and provides the modulated signals to a conventional digital home communications terminal (DHCT). Accordingly, conventional DHCTs can be used in an IP-based network.
Public/Granted literature
- US20040257976A1 Single wire return device including a QAM modulator for downstream IP signals Public/Granted day:2004-12-23
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