JPS55139657A - Tape recorder - Google Patents
Tape recorderInfo
- Publication number
- JPS55139657A JPS55139657A JP4414679A JP4414679A JPS55139657A JP S55139657 A JPS55139657 A JP S55139657A JP 4414679 A JP4414679 A JP 4414679A JP 4414679 A JP4414679 A JP 4414679A JP S55139657 A JPS55139657 A JP S55139657A
- Authority
- JP
- Japan
- Prior art keywords
- frequency
- voltage
- circuit
- difference
- motor
- 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
Abstract
PURPOSE: To make it possible to correct a difference in speed between different units by equalizing a tape feed speed in reproduction to that in recording by a motor control signal from the method of outputting the motor control signal.
CONSTITUTION: Frequency difference detector 8 consists of frequency difference detecting circuit 16 and reference frequency oscillating circuit 17. Thus, a difference between a biase signal frequency and the frequency of reference frequency oscillating circuit 17 is detected. Driving part 9 consists of frequency voltage converting circuit 18 and motor driving amplifying circuit 19 and the output signal of frequency difference detector 8 is converted by frequency voltage converting circuit 18 into a voltage equivalent to the frequency. This voltage is amplified by motor driving amplifier 19 to drive motor 15 varying in rotational frequency according to the voltage.
COPYRIGHT: (C)1980,JPO&Japio
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP4414679A JPS55139657A (en) | 1979-04-13 | 1979-04-13 | Tape recorder |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP4414679A JPS55139657A (en) | 1979-04-13 | 1979-04-13 | Tape recorder |
Publications (1)
Publication Number | Publication Date |
---|---|
JPS55139657A true JPS55139657A (en) | 1980-10-31 |
Family
ID=12683487
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP4414679A Pending JPS55139657A (en) | 1979-04-13 | 1979-04-13 | Tape recorder |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPS55139657A (en) |
-
1979
- 1979-04-13 JP JP4414679A patent/JPS55139657A/en active Pending
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