Invention Grant
- Patent Title: Audio correlation system for high definition radio blending
- Patent Title (中): 用于高分辨率无线电混合的音频相关系统
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Application No.: US11583966Application Date: 2006-10-18
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Publication No.: US07944998B2Publication Date: 2011-05-17
- Inventor: Vasant Shridhar , Mark Spellman , Nicolai Pavlov
- Applicant: Vasant Shridhar , Mark Spellman , Nicolai Pavlov
- Applicant Address: US CA Northridge
- Assignee: Harman International Industries, Incorporated
- Current Assignee: Harman International Industries, Incorporated
- Current Assignee Address: US CA Northridge
- Agency: Brinks Hofer Gilson & Lione
- Main IPC: H03D1/24
- IPC: H03D1/24 ; G06F3/033

Abstract:
A system that blends a hybrid radio signal may provide reduced audio content skipping and may determine an audio correlation between analog and digital signal components in the hybrid radio signal before blending from the analog signal component to the digital signal component. The system may reduce volume level transitions during blending by adjustment of blend and cross-fade variables, as well as setting a hysteresis mode to prevent undesirable sequential jumping from digital mode back to analog mode. The system also may compensate for digital AM frequency quality issues by adjustment of a filter bandwidth when the receiver blends an AM signal from analog to digital mode.
Public/Granted literature
- US20070293167A1 Audio correlation system for high definition radio blending Public/Granted day:2007-12-20
Information query
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