JPS5640558B2 - - Google Patents
Info
- Publication number
- JPS5640558B2 JPS5640558B2 JP8332677A JP8332677A JPS5640558B2 JP S5640558 B2 JPS5640558 B2 JP S5640558B2 JP 8332677 A JP8332677 A JP 8332677A JP 8332677 A JP8332677 A JP 8332677A JP S5640558 B2 JPS5640558 B2 JP S5640558B2
- 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; ELECTRIC HEARING AIDS; 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)
- Stereophonic Arrangements (AREA)
Priority Applications (4)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP8332677A JPS5417828A (en) | 1977-07-11 | 1977-07-11 | Headphone device |
| US05/923,206 US4211898A (en) | 1977-07-11 | 1978-07-10 | Headphone with two resonant peaks for simulating loudspeaker reproduction |
| DE2830451A DE2830451C2 (en) | 1977-07-11 | 1978-07-11 | headphones |
| GB7829489A GB2000941B (en) | 1977-07-11 | 1978-07-11 | Headphone with two resonant peaks for simulating loudspeaker reproduction |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP8332677A JPS5417828A (en) | 1977-07-11 | 1977-07-11 | Headphone device |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS5417828A JPS5417828A (en) | 1979-02-09 |
| JPS5640558B2 true JPS5640558B2 (en) | 1981-09-21 |
Family
ID=13799294
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP8332677A Granted JPS5417828A (en) | 1977-07-11 | 1977-07-11 | Headphone device |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS5417828A (en) |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS62275649A (en) * | 1986-05-23 | 1987-11-30 | Hatsuho Seika Kk | Production of confectionery |
| JPS62275650A (en) * | 1986-05-23 | 1987-11-30 | Hatsuho Seika Kk | Production of expanded confectionery |
-
1977
- 1977-07-11 JP JP8332677A patent/JPS5417828A/en active Granted
Also Published As
| Publication number | Publication date |
|---|---|
| JPS5417828A (en) | 1979-02-09 |