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公开(公告)号:US2177723A
公开(公告)日:1939-10-31
申请号:US13716637
申请日:1937-04-16
Applicant: RCA CORP
Inventor: JOHN KEMP ROLAND , JOHN FEWINGS DAVID
IPC: H04N5/10
CPC classification number: H04N5/10
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公开(公告)号:US2293739A
公开(公告)日:1942-08-25
申请号:US24263338
申请日:1938-11-26
Applicant: RCA CORP
Inventor: JOHN KEMP ROLAND
IPC: G01S3/14
CPC classification number: G01S3/143
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公开(公告)号:US2155492A
公开(公告)日:1939-04-25
申请号:US7128236
申请日:1936-03-27
Applicant: RCA CORP
Inventor: JOHN KEMP ROLAND , LEOPOLD PLAISTOWE DONALD
IPC: G01S1/02
CPC classification number: G01S1/02
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公开(公告)号:US2143379A
公开(公告)日:1939-01-10
申请号:US2598135
申请日:1935-06-11
Applicant: RCA CORP
Inventor: JOHN KEMP ROLAND
IPC: H03K4/86
CPC classification number: H03K4/86
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5.Pulse echo range finding system and impulse generator therefor 失效
Title translation: 脉冲回波测距系统及其脉冲发生器公开(公告)号:US2497002A
公开(公告)日:1950-02-07
申请号:US50855443
申请日:1943-11-01
Applicant: RCA CORP
Inventor: JOHN KEMP ROLAND , JOHN FEWINGS DAVID
IPC: G01S7/282
CPC classification number: G01S7/282
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公开(公告)号:US2268811A
公开(公告)日:1942-01-06
申请号:US22314838
申请日:1938-08-05
Applicant: RCA CORP
Inventor: JOHN FEWINGS DAVID , JOHN KEMP ROLAND
IPC: H04N5/52
CPC classification number: H04N5/52
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公开(公告)号:US2258752A
公开(公告)日:1941-10-14
申请号:US29765839
申请日:1939-10-03
Applicant: RCA CORP
Inventor: JOHN FEWINGS DAVID , JOHN KEMP ROLAND
IPC: H03K6/02
CPC classification number: H03K6/02
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公开(公告)号:US2150551A
公开(公告)日:1939-03-14
申请号:US6001436
申请日:1936-01-21
Applicant: RCA CORP
Inventor: JOHN KEMP ROLAND
IPC: G01S1/02
CPC classification number: G01S1/02
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公开(公告)号:US2284873A
公开(公告)日:1942-06-02
申请号:US33045740
申请日:1940-04-19
Applicant: RCA CORP
Inventor: JOHN KEMP ROLAND
IPC: G01S5/00
CPC classification number: G01S5/0009
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公开(公告)号:US2266047A
公开(公告)日:1941-12-16
申请号:US21572938
申请日:1938-06-25
Applicant: RCA CORP
Inventor: JOHN KEMP ROLAND
IPC: H03K4/16
CPC classification number: H03K4/16
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