JPS5642457A - Telephone set - Google Patents
Telephone setInfo
- Publication number
- JPS5642457A JPS5642457A JP11786579A JP11786579A JPS5642457A JP S5642457 A JPS5642457 A JP S5642457A JP 11786579 A JP11786579 A JP 11786579A JP 11786579 A JP11786579 A JP 11786579A JP S5642457 A JPS5642457 A JP S5642457A
- Authority
- JP
- Japan
- Prior art keywords
- circuits
- reverberating
- left ear
- systems
- phase
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
Links
Classifications
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04M—TELEPHONIC COMMUNICATION
- H04M1/00—Substation equipment, e.g. for use by subscribers
- H04M1/60—Substation equipment, e.g. for use by subscribers including speech amplifiers
Landscapes
- Engineering & Computer Science (AREA)
- Signal Processing (AREA)
Abstract
PURPOSE:To make talk reception of high quality possible by providing each of input signal systems, which correspond to two receivers for right and left ears, with at least not less than one of a reverberating circuit, phase-shifting circuit and amplifying circuit. CONSTITUTION:A received input signal from terminal 1 is branched to both right and left ear systems and then inputted to reverberating circuits 2 and 3 differing in reverberating characteristics. Output signals of circuits 2 and 3 are inputted to phase-shifting circuits 4 and 5 and delayed in time with control signals from terminals 6 and 7. This delay time changes according to time and the phase difference between signals of both right and left ear systems reaches a fixed value at a certain frequency. Output signals of circuits 4 and 5 enter amplifying circuits 8 and 9, where the gain difference between both right and left ear systems is changed at constant cycles with control signals from terminals 10 and 11. Thus, a called subscriber can receive the sound of a calling subscriber and the sound image of an acoustic signal with localization and sense the movement of the sound image, so that reception of high quality can be attained.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP11786579A JPS5642457A (en) | 1979-09-17 | 1979-09-17 | Telephone set |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP11786579A JPS5642457A (en) | 1979-09-17 | 1979-09-17 | Telephone set |
Publications (1)
Publication Number | Publication Date |
---|---|
JPS5642457A true JPS5642457A (en) | 1981-04-20 |
Family
ID=14722199
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP11786579A Pending JPS5642457A (en) | 1979-09-17 | 1979-09-17 | Telephone set |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPS5642457A (en) |
-
1979
- 1979-09-17 JP JP11786579A patent/JPS5642457A/en active Pending
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