JPS5713845A - Telephone set - Google Patents
Telephone setInfo
- Publication number
- JPS5713845A JPS5713845A JP8861980A JP8861980A JPS5713845A JP S5713845 A JPS5713845 A JP S5713845A JP 8861980 A JP8861980 A JP 8861980A JP 8861980 A JP8861980 A JP 8861980A JP S5713845 A JPS5713845 A JP S5713845A
- Authority
- JP
- Japan
- Prior art keywords
- housing
- partitioning body
- acoustic
- bell
- wavelength
- 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.)
- Granted
Links
Classifications
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04M—TELEPHONIC COMMUNICATION
- H04M1/00—Substation equipment, e.g. for use by subscribers
- H04M1/02—Constructional features of telephone sets
Landscapes
- Engineering & Computer Science (AREA)
- Signal Processing (AREA)
- Telephone Set Structure (AREA)
Abstract
PURPOSE:To increase an incoming tone in volume remarkably by arranging an acoustic partitioning body in housing at a distance of about a half of the wavelength of the incoming tone from the sounding source of a bell. CONSTITUTION:On the internal surface of the rear upper wall of telephone set housing 7, plate-shaped acoustic partitioning body 11 is formed in the same body with the housing 7. This partitioning body 11 is arranged nearly perpendicularly between both side walls of the housing 7 and the distance L between the sounding source P of a bell 2 and the partitioning body 11 is set about a half the wavelength of an acoustic wave with a higher frequency. Consequently, providing the partitioning body 11 to the housing 7 increases acoustic effect remarkably.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP8861980A JPS5713845A (en) | 1980-06-30 | 1980-06-30 | Telephone set |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP8861980A JPS5713845A (en) | 1980-06-30 | 1980-06-30 | Telephone set |
Publications (2)
Publication Number | Publication Date |
---|---|
JPS5713845A true JPS5713845A (en) | 1982-01-23 |
JPS6155819B2 JPS6155819B2 (en) | 1986-11-29 |
Family
ID=13947813
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP8861980A Granted JPS5713845A (en) | 1980-06-30 | 1980-06-30 | Telephone set |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPS5713845A (en) |
-
1980
- 1980-06-30 JP JP8861980A patent/JPS5713845A/en active Granted
Also Published As
Publication number | Publication date |
---|---|
JPS6155819B2 (en) | 1986-11-29 |
Similar Documents
Publication | Publication Date | Title |
---|---|---|
GB2078042B (en) | Surface acoustic wave resonator | |
JPS5388718A (en) | Sealed head phone | |
EP0339470A3 (en) | Electroacoustic driving circuit | |
DE2960263D1 (en) | Piezoelectric transducers with mechanical amplification for very low frequencies and acoustic antennas | |
JPS5799814A (en) | Surface sound wave reflector type resonator | |
ES486343A1 (en) | Electroacoustic assembly. | |
DE3168823D1 (en) | Surface acoustic wave resonator | |
DE3170117D1 (en) | Acoustic surface wave transducer with improved inband frequency characteristics | |
JPS5713845A (en) | Telephone set | |
JPS5763921A (en) | Surface acoustic wave device | |
GB1434056A (en) | Telephone calling devices | |
JPS5388719A (en) | Head phone | |
NO844720L (en) | DEVICE FOR GENERATING ACOUSTIC IMPULS BY IMPLOSION IN THE INTERNAL OF A BROWN | |
JPS6468099A (en) | Speaker system | |
JPS56126397A (en) | Speaker system | |
JPS55143894A (en) | Speaker unit | |
JPS5392120A (en) | Method of mounting directional microphone | |
JPS5392123A (en) | Method of mounting speaker | |
ES426899A1 (en) | Acoustic surface wave device | |
JPS5772497A (en) | Piezoelectric speaker | |
JPS56168496A (en) | Speaker | |
JPS5768989A (en) | Microphone with echo device | |
NL7613904A (en) | Transducer with electromagnetic converter for miniature hearing aid - has chamber with partition partly of foil with hole for push rod and damping | |
JPS5679986A (en) | Buzzer for electronic timepiece | |
JPS57212854A (en) | Handset for telephone device |