JPH0454003U - - Google Patents
Info
- Publication number
- JPH0454003U JPH0454003U JP9639090U JP9639090U JPH0454003U JP H0454003 U JPH0454003 U JP H0454003U JP 9639090 U JP9639090 U JP 9639090U JP 9639090 U JP9639090 U JP 9639090U JP H0454003 U JPH0454003 U JP H0454003U
- Authority
- JP
- Japan
- Prior art keywords
- frequency
- section
- bias
- reception
- receives radio
- 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
- 238000001514 detection method Methods 0.000 claims description 4
- 230000007274 generation of a signal involved in cell-cell signaling Effects 0.000 claims description 3
- 238000010586 diagram Methods 0.000 description 2
- 230000010355 oscillation Effects 0.000 description 1
Description
第１図は本考案の一実施例の電気的構成を示す
ブロツク図、第２図はバイアス信号発生部の出力
周波数を示す説明図、第３図は周波数検出部を構
成する演算部と周波数演算部との動作を示すフロ
ーチヤート、第４図は周波数演算部の演算時の演
算結果を示す説明図である。
１１……周波数検出部、１１１……カウンタ、
１１２……演算部、１２……周波数演算部、１３
……バイアス信号発生部、１３１……発振部、Ｑ
１，Ｑ２……バイアス周波数を変更するためのト
ランジスタ。
Fig. 1 is a block diagram showing the electrical configuration of an embodiment of the present invention, Fig. 2 is an explanatory diagram showing the output frequency of the bias signal generation section, and Fig. 3 shows the calculation section and frequency calculation that constitute the frequency detection section. FIG. 4 is a flowchart showing the operation of the frequency calculation section, and FIG. 11...Frequency detection section, 111...Counter,
112...Arithmetic unit, 12...Frequency arithmetic unit, 13
...Bias signal generation section, 131...Oscillation section, Q
1, Q2...Transistor for changing the bias frequency.
Claims (1)
ラジオ放送の録音を行う磁気テープ録音装置にお
いて、 録音時に磁気ヘツドに供給されるバイアス信号
の周波数をバイアス周波数とするとき、 ラジオ放送の受信を行う受信部の受信周波数の
検出を行う周波数検出部と、 この周波数検出部により検出された受信周波数
と前記バイアス周波数の高調波との周波数の差異
の最小値を演算することにより、演算結果が予め
設定された値より大きくなるバイアス周波数を算
出する周波数演算部と、 この周波数演算部によつて算出されたバイアス
周波数のバイアス信号を発生するバイアス信号発
生部とを備えたことを特徴とする磁気テープ録音
装置。[Scope of Claim for Utility Model Registration] In a magnetic tape recording device that receives radio broadcasts and records the received radio broadcasts, when the frequency of the bias signal supplied to the magnetic head during recording is defined as the bias frequency, A frequency detection section that detects a reception frequency of a reception section that receives radio broadcasting; and a frequency detection section that detects a reception frequency of a reception section that receives radio broadcasting; , a frequency calculation section that calculates a bias frequency whose calculation result is larger than a preset value, and a bias signal generation section that generates a bias signal of the bias frequency calculated by the frequency calculation section. Features a magnetic tape recording device.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP9639090U JPH0454003U (en) | 1990-09-12 | 1990-09-12 |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP9639090U JPH0454003U (en) | 1990-09-12 | 1990-09-12 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPH0454003U true JPH0454003U (en) | 1992-05-08 |
Family
ID=31835882
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP9639090U Pending JPH0454003U (en) | 1990-09-12 | 1990-09-12 |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH0454003U (en) |
-
1990
- 1990-09-12 JP JP9639090U patent/JPH0454003U/ja active Pending
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