US4264882A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Electric signal transmission device employing a ferromagnetic amorphous ribbon
Assignee: Japan Science and Technology Agency
•
Filing: 1977-03-11
•
Granted: 1981-04-28
•
Expires: 1997-03-11
Abstract
Abstract An electric signal transmission transducer employing a ferromagnetic amorphous ribbon and especially an electric signal transmission element and system and an electroacoustic signal conversion system using a ferromagnetic amorphous ribbon. The transmission transducer also provides for applying a magnetic field to the ferromagnetic amorphous ribbon for controlling the electric signal transmission or delay time. Also shown are the electric and magnetic characteristics of ferromagnetic amorphous ribbons after various heat treatments in various magnetic fields.
Inventors
- 👤 Noboru Tsuya
- 👤 Kenichi Arai
- 👤 Hiroshi Shimizu
- 👤 Tsuyoshi Masumoto
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-05 09:47
CPC Classifications
H; H04; H04B; H04B11/00
Claims Analysis
Total Claims: 6
Claim 1
Independent Claim
188 words
An electric signal transmission and conversion system comprising: a ferromagnetic amorphous ribbon which has been treated to substantially increase the electromechanical coupling coefficient thereof for forming an acoustic signal transmission medium; a device for applying an external force provided in association with said ferromagnetic amorphous ribbon for controlling the acoustic signal propagation time of said ferromagnetic amorphous ribbon; input means for said ferromagnetic amorphous ribbon including an electric circuit for producing an input signal; output means for said ferromagnetic amorphous ribbon including an electronic circuit for processing an output electric signal according to a particular purpose; said device for applying the external force including an electronic circuit for electronically controlling the acoustic signal propagation time; said input and output means for said ferromagnetic amorphous ribbon including an averaging device having two input units, one output unit, and an electronic circuit supplied from a first one of the input units with a weak repetitive signal containing noise to feed back the output from the output unit to the second input unit at the same time as a signal from the first input unit arrives at the second input unit.
Claim 2
Dependent Claim
188 words
An electric signal transmission and conversion system comprising: a ferromagnetic amorphous ribbon which has been treated to substantially increase the electromechanical coupling coefficient thereof for forming an acoustic signal transmission medium; a device for applying an external force provided in association with said ferromagnetic amorphous ribbon for controlling the acoustic signal propagation time of said ferromagnetic amorphous ribbon; input means for said ferromagnetic amorphous ribbon including an electric circuit for producing an input signal; output means for said ferromagnetic amorphous ribbon including an electronic circuit for processing an output electric signal according to a particular purpose; said device for applying the external force including an electronic circuit for electronically controlling the acoustic signal propagation time; said input and output means for said ferromagnetic amorphous ribbon including an averaging device having two input units, one output unit, and an electronic circuit supplied from a first one of the input units with a weak repetitive signal containing noise to feed back the output from the output unit to the second input unit at the same time as a signal from the first input unit arrives at the second input unit.
Claim 3
Dependent Claim
36 words
An electric signal transmission device according to claim 1, wherein said ferromagnetic amorphous ribbon which has been treated to substantially increase the electromechanical coupling thereof includes being heat-treated in a magnetic field for a given time.
Claim 4
Dependent Claim
187 words
An electric signal transmission and conversion system comprising: a ferromagnetic amorphous ribbon which has been treated to substantially increase the electromechanical coupling coefficient thereof for forming an acoustic signal transmission medium; a device for applying an external force provided in association with said ferromagnetic amorphous ribbon for controlling the acoustic signal propagation time of said ferromagnetic amorphous ribbon; input means for said ferromagnetic amorphous ribbon including an electronic circuit for producing an input signal; output means for said ferromagnetic amorphous ribbon including an electronic circuit, for processing an output electric signal according to a particular purpose; said device for applying the external force including an electronic circuit for electronically controlling the acoustic signal propagation time; said input and output means for said ferromagnetic amorphous ribbon including an input signal generator means which is supplied from two output places associated with said ferromagnetic amorphous ribbon by two electric signals having a time difference therebetween but proportional in amplitude to each other and identical in waveform with each other, the arrival times of the two electric signals are automatically adjusted and their polarity and amplification degree are automatically adjusted.
Claim 5
Dependent Claim
187 words
An electric signal transmission and conversion system comprising: a ferromagnetic amorphous ribbon which has been treated to substantially increase the electromechanical coupling coefficient thereof for forming an acoustic signal transmission medium; a device for applying an external force provided in association with said ferromagnetic amorphous ribbon for controlling the acoustic signal propagation time of said ferromagnetic amorphous ribbon; input means for said ferromagnetic amorphous ribbon including an electronic circuit for producing an input signal; output means for said ferromagnetic amorphous ribbon including an electronic circuit, for processing an output electric signal according to a particular purpose; said device for applying the external force including an electronic circuit for electronically controlling the acoustic signal propagation time; said input and output means for said ferromagnetic amorphous ribbon including an input signal generator means which is supplied from two output places associated with said ferromagnetic amorphous ribbon by two electric signals having a time difference therebetween but proportional in amplitude to each other and identical in waveform with each other, the arrival times of the two electric signals are automatically adjusted and their polarity and amplification degree are automatically adjusted.
Claim 6
Dependent Claim
36 words
An electric signal transmission device according to claim 3, wherein said ferromagnetic amorphous ribbon which has been treated to substantially increase the electromechanical coupling thereof includes being heat-treated in a magnetic field for a given time.
References Cited (Backward Citations)
US2612603A
Cited
US2863120A
Cited
US3173131A
Cited
US3129395A
Cited
US3820040A
Cited
US4071818A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1984-04-27 | 1984-10-27 | 1985-04-28 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1988-04-27 | 1988-10-27 | 1989-04-28 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1992-04-27 | 1992-10-27 | 1993-04-28 | $7700.00 | Window Closed / Lapsed |