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11.Sum and difference stereophonic transmission with negative feedback 失效
Title translation: 总和差异立体声传输与负反馈公开(公告)号:US3083264A
公开(公告)日:1963-03-26
申请号:US85867959
申请日:1959-12-10
Applicant: BELL TELEPHONE LABOR INC
Inventor: WINTRINGHAM WILLIAM T
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公开(公告)号:US2186130A
公开(公告)日:1940-01-09
申请号:US9677436
申请日:1936-08-19
Applicant: BELL TELEPHONE LABOR INC
Inventor: WINTRINGHAM WILLIAM T
IPC: H03D1/06
CPC classification number: H03D1/06
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