JPS5512583A - Detector for record disc - Google Patents
Detector for record discInfo
- Publication number
- JPS5512583A JPS5512583A JP8557378A JP8557378A JPS5512583A JP S5512583 A JPS5512583 A JP S5512583A JP 8557378 A JP8557378 A JP 8557378A JP 8557378 A JP8557378 A JP 8557378A JP S5512583 A JPS5512583 A JP S5512583A
- Authority
- JP
- Japan
- Prior art keywords
- ultrasonic
- microphones
- record disc
- speaker
- holes
- 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
-
- G—PHYSICS
- G11—INFORMATION STORAGE
- G11B—INFORMATION STORAGE BASED ON RELATIVE MOVEMENT BETWEEN RECORD CARRIER AND TRANSDUCER
- G11B19/00—Driving, starting, stopping record carriers not specifically of filamentary or web form, or of supports therefor; Control thereof; Control of operating function ; Driving both disc and head
- G11B19/02—Control of operating function, e.g. switching from recording to reproducing
- G11B19/12—Control of operating function, e.g. switching from recording to reproducing by sensing distinguishing features of or on records, e.g. diameter end mark
- G11B19/124—Control of operating function, e.g. switching from recording to reproducing by sensing distinguishing features of or on records, e.g. diameter end mark involving the detection of diameter of disks
Landscapes
- Length Measuring Devices Characterised By Use Of Acoustic Means (AREA)
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP8557378A JPS5512583A (en) | 1978-07-12 | 1978-07-12 | Detector for record disc |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP8557378A JPS5512583A (en) | 1978-07-12 | 1978-07-12 | Detector for record disc |
Publications (1)
Publication Number | Publication Date |
---|---|
JPS5512583A true JPS5512583A (en) | 1980-01-29 |
Family
ID=13862548
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP8557378A Pending JPS5512583A (en) | 1978-07-12 | 1978-07-12 | Detector for record disc |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPS5512583A (ja) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS56170571U (ja) * | 1980-05-21 | 1981-12-16 |
-
1978
- 1978-07-12 JP JP8557378A patent/JPS5512583A/ja active Pending
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS56170571U (ja) * | 1980-05-21 | 1981-12-16 |
Similar Documents
Publication | Publication Date | Title |
---|---|---|
JPS54127205A (en) | Audio signal processor | |
JPS6420867A (en) | Light and sound generator | |
JPS53140079A (en) | Automatic recognizing system for moving sound source | |
JPS5563758A (en) | Method of discriminating type of golf ball | |
NL7608280A (nl) | Signaalbewerkingsinrichting voor een ultrasonoor afbeeldingsstelsel. | |
ATE95319T1 (de) | Ziel-detektor. | |
JPS5788333A (en) | Meausring device for stress distribution | |
JPS5512583A (en) | Detector for record disc | |
FI823911A0 (fi) | Foerfarande foer inregistrering av fosterroerelser under havandeskapstiden och apparat foer verkstaellandet av foerfarandet | |
JPS5512582A (en) | Detector for record disc | |
JPS5512580A (en) | Detector for record disc | |
JPS5512584A (en) | Detector for record disc | |
JPS51114855A (en) | Acoustic surface wave frequency discriminator | |
JPS5217076A (en) | Signal generator for detection of unbalance psotions | |
JPS51120114A (en) | Signal observation unit | |
JPS5512581A (en) | Detector for record disc | |
SU607297A1 (ru) | Устройство обработки сигналов на акустических поверхностных волнах | |
JPS5217065A (en) | Directional doppler signal detection system | |
JPS5363802A (en) | Sound recognition unit | |
SU478243A1 (ru) | Дефектоскоп | |
JPS5251918A (en) | Constant revolution detecting circuit for magnetic discs | |
JPS51146885A (en) | Steel material ultrasonic wave and eddy flaw detector | |
JPS51113771A (en) | Information signal discriminating unit | |
FR2414199A1 (fr) | Procede de controle par ultrasons de materiaux et dispositif pour la realisation de ce procede | |
JPS5217881A (en) | Medium destruction detector for glass sheets, etc. |