发明授权
- 专利标题： Baseband discriminator for frequency or transform modulation
- 专利标题（中）： 用于频率或变换调制的基带鉴频器
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申请号： US429380申请日： 1982-09-30
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公开(公告)号： US4499426A公开(公告)日： 1985-02-12
- 发明人: Norman W. Parker
- 申请人： Norman W. Parker
- 申请人地址： IL Schaumburg
- 专利权人： Motorola, Inc.
- 当前专利权人： Motorola, Inc.
- 当前专利权人地址： IL Schaumburg
- 主分类号： H03C3/00
- IPC分类号： H03C3/00 ; H04B1/68 ; H04B14/00 ; G06G7/62 ; H03D5/00
摘要：
A baseband discriminator decodes a pair of trigonometric transform function signals, sin f(t) and cos f(t), to provide an original audio signal f(t) by first deriving the derivative of the audio signal from the pair of trigonometric signals and integrating that derivative. The discriminator is used in a new system of SSB transmission termed "transform modulation" and also in FM transmission.
公开/授权文献
- US5588669A Cover attachment for an air bag module 公开/授权日：1996-12-31
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