Invention Grant
- Patent Title: Digital broadcast methods and apparatus
- Patent Title (中): 数字广播方式和装置
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Application No.: US11370222Application Date: 2006-03-07
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Publication No.: US08363592B2Publication Date: 2013-01-29
- Inventor: Rajiv Laroia , Arnab Das , Junyi Li
- Applicant: Rajiv Laroia , Arnab Das , Junyi Li
- Applicant Address: US CA San Diego
- Assignee: QUALCOMM Incorporated
- Current Assignee: QUALCOMM Incorporated
- Current Assignee Address: US CA San Diego
- Agent Raphael Freiwirth
- Main IPC: H04N7/12
- IPC: H04N7/12

Abstract:
A transmitter apparatus at a base station transmits program information using a plurality of carriers with at least some of the carriers having different transmit power levels. The carrier associated with the highest transmit power level conveys broadcast information carrying basic program information. A carrier associated with a lower power level conveys broadcast information including enhancement information and/or additional content. The enhancement information and/or additional content may include a higher level of video and/or audio resolution, additional video and/or audio content, support for additional languages, a text stream, and/or advertisements. A wireless terminal tunes, receives and processes the broadcast information. A wireless terminal can recover different levels of resolution of a broadcast program, e.g., a digital video broadcast program, and/or different amounts of additional content, depending upon which carriers are being used.
Public/Granted literature
- US20060223461A1 Digital broadcast methods and apparatus Public/Granted day:2006-10-05
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