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1.Doubly balanced modulator with suppressed even harmonic sidebands 失效
Title translation: 双重平衡调制器,具有抑制的和谐边界公开(公告)号:US3484723A
公开(公告)日:1969-12-16
申请号:US3484723D
申请日:1966-12-01
Applicant: ZENITH RADIO CORP
Inventor: RYPKEMA JOUKE N
CPC classification number: H03C1/545
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公开(公告)号:US3297826A
公开(公告)日:1967-01-10
申请号:US39894864
申请日:1964-09-24
Applicant: ZENITH RADIO CORP
Inventor: FLEMING DIAS , RYPKEMA JOUKE N
IPC: H04B1/16
CPC classification number: H04B1/1653
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公开(公告)号:US3466386A
公开(公告)日:1969-09-09
申请号:US3466386D
申请日:1966-12-30
Applicant: ZENITH RADIO CORP
Inventor: DIAS FLEMING , EILERS CARL G , RYPKEMA JOUKE N
IPC: H04N9/66
CPC classification number: H04N9/66
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4.Multivibrator detector for stereophonic frequency modulation receivers 失效
Title translation: 用于立体声调频接收机的多谐振荡器检测器公开(公告)号:US3286035A
公开(公告)日:1966-11-15
申请号:US39895064
申请日:1964-09-24
Applicant: ZENITH RADIO CORP
Inventor: FLEMING DIAS , RYPKEMA JOUKE N
IPC: H03D1/22
CPC classification number: H03D1/2227
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5.Compatible stereo sound system employing time modulation techniques 失效
Title translation: 兼容的立体声系统采用时间调制技术公开(公告)号:US3388214A
公开(公告)日:1968-06-11
申请号:US43007665
申请日:1965-02-03
Applicant: ZENITH RADIO CORP
Inventor: EILERS CARL G , RYPKEMA JOUKE N
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公开(公告)号:US3360608A
公开(公告)日:1967-12-26
申请号:US55808166
申请日:1966-06-16
Applicant: ZENITH RADIO CORP
Inventor: RYPKEMA JOUKE N
IPC: H04B1/16
CPC classification number: H04B1/1653
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公开(公告)号:US3286034A
公开(公告)日:1966-11-15
申请号:US39894964
申请日:1964-09-24
Applicant: ZENITH RADIO CORP
Inventor: RYPKEMA JOUKE N
IPC: H04B1/16
CPC classification number: H04B1/1653
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