JPS5057674A - - Google Patents
Info
- Publication number
- JPS5057674A JPS5057674A JP49105890A JP10589074A JPS5057674A JP S5057674 A JPS5057674 A JP S5057674A JP 49105890 A JP49105890 A JP 49105890A JP 10589074 A JP10589074 A JP 10589074A JP S5057674 A JPS5057674 A JP S5057674A
- 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.)
- Pending
Links
Classifications
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01R—MEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES
- G01R23/00—Arrangements for measuring frequencies; Arrangements for analysing frequency spectra
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01R—MEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES
- G01R13/00—Arrangements for displaying electric variables or waveforms
- G01R13/20—Cathode-ray oscilloscopes
- G01R13/22—Circuits therefor
- G01R13/28—Circuits for simultaneous or sequential presentation of more than one variable
-
- G—PHYSICS
- G10—MUSICAL INSTRUMENTS; ACOUSTICS
- G10H—ELECTROPHONIC MUSICAL INSTRUMENTS; INSTRUMENTS IN WHICH THE TONES ARE GENERATED BY ELECTROMECHANICAL MEANS OR ELECTRONIC GENERATORS, OR IN WHICH THE TONES ARE SYNTHESISED FROM A DATA STORE
- G10H1/00—Details of electrophonic musical instruments
- G10H1/44—Tuning means
Landscapes
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Engineering & Computer Science (AREA)
- Acoustics & Sound (AREA)
- Multimedia (AREA)
- Controls And Circuits For Display Device (AREA)
- Measuring Frequencies, Analyzing Spectra (AREA)
- Auxiliary Devices For Music (AREA)
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| US398027A US3876936A (en) | 1973-09-17 | 1973-09-17 | Visual audio frequency comparator |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPS5057674A true JPS5057674A (no) | 1975-05-20 |
Family
ID=23573700
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP49105890A Pending JPS5057674A (no) | 1973-09-17 | 1974-09-13 |
Country Status (5)
| Country | Link |
|---|---|
| US (1) | US3876936A (no) |
| JP (1) | JPS5057674A (no) |
| DE (1) | DE2444402A1 (no) |
| GB (1) | GB1432286A (no) |
| HK (1) | HK59879A (no) |
Families Citing this family (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4256008A (en) * | 1979-05-17 | 1981-03-17 | Motorola, Inc. | Musical instrument tuner with incremental scale shift |
| US4648113A (en) * | 1985-09-11 | 1987-03-03 | Tektronix, Inc. | Method and apparatus for providing a visual indication of a relationship between two signals |
| US4677481A (en) * | 1986-03-17 | 1987-06-30 | Tektronix, Inc. | Dual display monitor |
| US5563358A (en) * | 1991-12-06 | 1996-10-08 | Zimmerman; Thomas G. | Music training apparatus |
| US5287789A (en) * | 1991-12-06 | 1994-02-22 | Zimmerman Thomas G | Music training apparatus |
| US5719343A (en) * | 1996-06-14 | 1998-02-17 | Reyburn Piano Service, Inc. | Digital aural musical instrument tuning |
| US6271620B1 (en) | 1999-05-20 | 2001-08-07 | Sen Corporation | Acoustic transducer and method of making the same |
| EP1739653B1 (en) * | 2005-06-28 | 2015-09-23 | Yamaha Corporation | Tuning device for musical instruments and computer program for the same |
Family Cites Families (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3074054A (en) * | 1960-11-16 | 1963-01-15 | American District Telegraph Co | Electrical system and method for protecting premises subject to varying ambient conditions |
| US3287639A (en) * | 1964-10-08 | 1966-11-22 | Marion L Vail | Precision a. c. phase sensor |
-
1973
- 1973-09-17 US US398027A patent/US3876936A/en not_active Expired - Lifetime
-
1974
- 1974-09-04 GB GB3871174A patent/GB1432286A/en not_active Expired
- 1974-09-13 JP JP49105890A patent/JPS5057674A/ja active Pending
- 1974-09-17 DE DE19742444402 patent/DE2444402A1/de not_active Withdrawn
-
1979
- 1979-08-23 HK HK598/79A patent/HK59879A/xx unknown
Also Published As
| Publication number | Publication date |
|---|---|
| HK59879A (en) | 1979-08-31 |
| US3876936A (en) | 1975-04-08 |
| DE2444402A1 (de) | 1975-03-20 |
| GB1432286A (en) | 1976-04-14 |