JPS5645557B2 - - Google Patents
Info
- Publication number
- JPS5645557B2 JPS5645557B2 JP11639476A JP11639476A JPS5645557B2 JP S5645557 B2 JPS5645557 B2 JP S5645557B2 JP 11639476 A JP11639476 A JP 11639476A JP 11639476 A JP11639476 A JP 11639476A JP S5645557 B2 JPS5645557 B2 JP S5645557B2
- Authority
- JP
- Japan
- 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.)
- Expired
Links
Classifications
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04R—LOUDSPEAKERS, MICROPHONES, GRAMOPHONE PICK-UPS OR LIKE ACOUSTIC ELECTROMECHANICAL TRANSDUCERS; DEAF-AID SETS; PUBLIC ADDRESS SYSTEMS
- H04R1/00—Details of transducers, loudspeakers or microphones
- H04R1/20—Arrangements for obtaining desired frequency or directional characteristics
- H04R1/22—Arrangements for obtaining desired frequency or directional characteristics for obtaining desired frequency characteristic only
- H04R1/225—Arrangements for obtaining desired frequency or directional characteristics for obtaining desired frequency characteristic only for telephonic receivers
Landscapes
- Health & Medical Sciences (AREA)
- Otolaryngology (AREA)
- Physics & Mathematics (AREA)
- Engineering & Computer Science (AREA)
- Acoustics & Sound (AREA)
- Signal Processing (AREA)
- Headphones And Earphones (AREA)
- Obtaining Desirable Characteristics In Audible-Bandwidth Transducers (AREA)
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP11639476A JPS5341219A (en) | 1976-09-27 | 1976-09-27 | Sound insulation type headphone |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP11639476A JPS5341219A (en) | 1976-09-27 | 1976-09-27 | Sound insulation type headphone |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS5341219A JPS5341219A (en) | 1978-04-14 |
| JPS5645557B2 true JPS5645557B2 (en) | 1981-10-27 |
Family
ID=14685938
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP11639476A Granted JPS5341219A (en) | 1976-09-27 | 1976-09-27 | Sound insulation type headphone |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS5341219A (en) |
Families Citing this family (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5463694A (en) * | 1978-08-17 | 1979-05-22 | Masayuki Sano | Vibration generator |
| US4993074A (en) * | 1988-04-13 | 1991-02-12 | Carroll Robert J | Earphone spacer |
| US5257318A (en) * | 1989-01-11 | 1993-10-26 | Carroll Robert J | Earphone spacer with electronically variable sound level |
| US6567525B1 (en) * | 1994-06-17 | 2003-05-20 | Bose Corporation | Supra aural active noise reduction headphones |
| JPH1032892A (en) * | 1996-05-16 | 1998-02-03 | Sony Corp | Open-type headphone |
| JP4875039B2 (en) * | 2008-09-24 | 2012-02-15 | ボーズ・コーポレーション | Active noise reduction headset |
| WO2016181531A1 (en) | 2015-05-13 | 2016-11-17 | Ｏｍｏｔｅｎａｓｙ合同会社 | Headphones |
Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5080118A (en) * | 1973-11-02 | 1975-06-30 |
-
1976
- 1976-09-27 JP JP11639476A patent/JPS5341219A/en active Granted
Patent Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5080118A (en) * | 1973-11-02 | 1975-06-30 |
Also Published As
| Publication number | Publication date |
|---|---|
| JPS5341219A (en) | 1978-04-14 |