Invention Grant
- Patent Title: Test set for evaluation of echo suppressors
- Patent Title (中): 用于评估ECHO抑制剂的测试装置
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Application No.: US3497641DApplication Date: 1967-08-02
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Publication No.: US3497641APublication Date: 1970-02-24
- Inventor: HELDER GEORGE K , UNRUE JOHN E JR
- Applicant: BELL TELEPHONE LABOR INC
- Assignee: Nokia Bell Labs
- Current Assignee: Nokia Bell Labs
- Priority: US65795467 1967-08-02
- Main IPC: H04B3/46
- IPC: H04B3/46
Information query
