JPS51150321A - Electric echo converter - Google Patents
Electric echo converterInfo
- Publication number
- JPS51150321A JPS51150321A JP7306275A JP7306275A JPS51150321A JP S51150321 A JPS51150321 A JP S51150321A JP 7306275 A JP7306275 A JP 7306275A JP 7306275 A JP7306275 A JP 7306275A JP S51150321 A JPS51150321 A JP S51150321A
- Authority
- JP
- Japan
- Prior art keywords
- electric echo
- converter
- echo converter
- electric
- regarding
- 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
- H04R—LOUDSPEAKERS, MICROPHONES, GRAMOPHONE PICK-UPS OR LIKE ACOUSTIC ELECTROMECHANICAL TRANSDUCERS; DEAF-AID SETS; PUBLIC ADDRESS SYSTEMS
- H04R17/00—Piezoelectric transducers; Electrostrictive transducers
- H04R17/005—Piezoelectric transducers; Electrostrictive transducers using a piezoelectric polymer
Landscapes
- Physics & Mathematics (AREA)
- Engineering & Computer Science (AREA)
- Acoustics & Sound (AREA)
- Signal Processing (AREA)
- Piezo-Electric Transducers For Audible Bands (AREA)
Abstract
PURPOSE:Regarding both passage change and mass-production, electric echo converter having average frequency characteristics is supplied.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP7306275A JPS51150321A (en) | 1975-06-18 | 1975-06-18 | Electric echo converter |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP7306275A JPS51150321A (en) | 1975-06-18 | 1975-06-18 | Electric echo converter |
Publications (1)
Publication Number | Publication Date |
---|---|
JPS51150321A true JPS51150321A (en) | 1976-12-23 |
Family
ID=13507476
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP7306275A Pending JPS51150321A (en) | 1975-06-18 | 1975-06-18 | Electric echo converter |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPS51150321A (en) |
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS54131836U (en) * | 1979-03-22 | 1979-09-12 | ||
WO2011108441A1 (en) * | 2010-03-01 | 2011-09-09 | パナソニック電工株式会社 | Piezoelectric speaker and alarm apparatus using this piezoelectric speaker |
Citations (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS4856128A (en) * | 1971-11-11 | 1973-08-07 |
-
1975
- 1975-06-18 JP JP7306275A patent/JPS51150321A/en active Pending
Patent Citations (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS4856128A (en) * | 1971-11-11 | 1973-08-07 |
Cited By (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS54131836U (en) * | 1979-03-22 | 1979-09-12 | ||
WO2011108441A1 (en) * | 2010-03-01 | 2011-09-09 | パナソニック電工株式会社 | Piezoelectric speaker and alarm apparatus using this piezoelectric speaker |
JP2011205613A (en) * | 2010-03-01 | 2011-10-13 | Panasonic Electric Works Co Ltd | Piezoelectric speaker and alarm apparatus using the piezoelectric speaker |
Similar Documents
Publication | Publication Date | Title |
---|---|---|
AU499939B2 (en) | Frequency converter | |
CA1020226A (en) | Direct current transmission and method of operating the same | |
ES459504A1 (en) | Aporphine derivatives | |
AU512512B2 (en) | Frequency converter | |
JPS52152145A (en) | Latching circulator | |
JPS51150321A (en) | Electric echo converter | |
JPS51115755A (en) | Microwane multi-stage filter | |
JPS5315045A (en) | Multi-frequency common-use antenna | |
AU505397B2 (en) | Frequency converter | |
JPS51114921A (en) | Acoustic converter | |
JPS5211348A (en) | Flexible coupling and its manufacturing process | |
JPS5234601A (en) | Calling circuit | |
JPS524092A (en) | Electrical contact point material | |
JPS5413321A (en) | Multi-way speaker system | |
JPS51141515A (en) | Synthesizer receiver | |
JPS5237702A (en) | Wire/wireless connection system | |
JPS51130104A (en) | Telephone set | |
JPS524818A (en) | Speaker | |
JPS5282055A (en) | Variable equalizer | |
JPS51135344A (en) | Reverberation additional equipment | |
JPS51123138A (en) | Electric sound converter | |
JPS5240052A (en) | Divider circuit | |
JPS51147163A (en) | Electric level pulse width converter | |
JPS526444A (en) | Corner waveguide | |
JPS5295910A (en) | Microwave balance type mixer |