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公开(公告)号：US2830112A
公开(公告)日：1958-04-08
申请号：US43241354
申请日：1954-05-26
Applicant: RCA CORP
Inventor： PRITCHARD DALTON H
IPC: H04N9/67
CPC classification number: H04N9/67
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公开(公告)号：US2752417A
公开(公告)日：1956-06-26
申请号：US37560653
申请日：1953-08-21
Applicant: RCA CORP
Inventor： PRITCHARD DALTON H
IPC: H04N9/70
CPC classification number: H04N9/70
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公开(公告)号：US2645713A
公开(公告)日：1953-07-14
申请号：US19247050
申请日：1950-10-27
Applicant: RCA CORP
Inventor： PRITCHARD DALTON H
IPC: H03K17/54
CPC classification number: H03K17/54
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5.发明授权
公开(公告)号：US2924649A
公开(公告)日：1960-02-09
申请号：US48806755
申请日：1955-02-14
Applicant: RCA CORP
Inventor： PRITCHARD DALTON H
IPC: H04N11/14
CPC classification number: H04N11/146
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Patent Agency Ranking
公开(公告)号：US2681379A
公开(公告)日：1954-06-15
申请号：US22325851
申请日：1951-04-27
Applicant: RCA CORP
Inventor： SCHROEDER ALFRED C , PRITCHARD DALTON H
IPC: H04N9/70
CPC classification number: H04N9/70
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7.发明授权Apparatus for generating test signals useful in measuring television transmission performance without affecting receiver synchronization 失效用于产生测试信号的设备用于测量电视传输性能而不影响接收器同步
公开(公告)号：US3576390A
公开(公告)日：1971-04-27
申请号：US3576390D
申请日：1968-05-29
Applicant: RCA CORP
Inventor： BOND DONALD S , SCHROEDER ALFRED C , PRITCHARD DALTON H
Abstract: Apparatus for generating supervisory test signals in the interval between the beginning of vertical blanking and the beginning of vertical sync in a television synchronizing waveform, so as to free for other communication purposes those portions of the waveform such test signals conventionally occupy.
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公开(公告)号：US3383460A
公开(公告)日：1968-05-14
申请号：US48235565
申请日：1965-08-25
Applicant: RCA CORP
Inventor： PRITCHARD DALTON H
IPC: G02F1/03
CPC classification number: G02F1/0322
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公开(公告)号：US2884480A
公开(公告)日：1959-04-28
申请号：US43253154
申请日：1954-05-26
Applicant: RCA CORP
Inventor： PRITCHARD DALTON H , SCHROEDER ALFRED C
IPC: H04N9/66
CPC classification number: H04N9/66
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