JPH0510736B2 - - Google Patents

Info

Publication number
JPH0510736B2
JPH0510736B2 JP59236130A JP23613084A JPH0510736B2 JP H0510736 B2 JPH0510736 B2 JP H0510736B2 JP 59236130 A JP59236130 A JP 59236130A JP 23613084 A JP23613084 A JP 23613084A JP H0510736 B2 JPH0510736 B2 JP H0510736B2
Authority
JP
Japan
Prior art keywords
tape
end detection
rotation
reel stand
detection time
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.)
Expired - Lifetime
Application number
JP59236130A
Other languages
Japanese (ja)
Other versions
JPS61115262A (en
Inventor
Takeo Ikenaga
Koichi Sakai
Masanori Oonishi
Kazuo Ishikawa
Kyoshi Ishioka
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Panasonic Holdings Corp
Original Assignee
Matsushita Electric Industrial Co Ltd
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Matsushita Electric Industrial Co Ltd filed Critical Matsushita Electric Industrial Co Ltd
Priority to JP59236130A priority Critical patent/JPS61115262A/en
Publication of JPS61115262A publication Critical patent/JPS61115262A/en
Publication of JPH0510736B2 publication Critical patent/JPH0510736B2/ja
Granted legal-status Critical Current

Links

Description

【発明の詳細な説明】 産業上の利用分野 本発明は往復走行可能なメカニズムを具備した
テープレコーダに関するものである。
DETAILED DESCRIPTION OF THE INVENTION FIELD OF INDUSTRIAL APPLICATION The present invention relates to a tape recorder equipped with a reciprocating mechanism.

従来の技術 一般に駆動メカニズムにカセツトテープを装着
し、その終端を検出する際には、第3図に示すよ
うに、正転巻取側リール台31に複数のSN極の
ある磁石を備え、一方この磁石に対して磁気セン
サー32を配置する。レール台の回転中は磁気セ
ンサー32の出力がS−Nに応じて変化するが、
リール台31が止まると、その出力変化がなくな
る。これを利用してリール台31の回転検知を行
なつている。そして、この磁気センサー32の出
力を終端検知手段33に入力する。ここでは磁気
センサー出力が、一定時間変化しなかつたらテー
プが終端に至つたものと判断し、このことを示す
出力が制御手段34に入力される。
BACKGROUND TECHNOLOGY Generally, when a cassette tape is mounted on a drive mechanism and the end of the tape is detected, as shown in FIG. A magnetic sensor 32 is arranged with respect to this magnet. While the rail stand is rotating, the output of the magnetic sensor 32 changes according to S-N.
When the reel stand 31 stops, there is no change in its output. This is utilized to detect the rotation of the reel stand 31. Then, the output of this magnetic sensor 32 is input to the termination detection means 33. Here, if the magnetic sensor output does not change for a certain period of time, it is determined that the tape has reached its end, and an output indicating this is input to the control means 34.

発明が解決しようとする問題点 ところが、このようなカセツトテープ終端検知
方式においては、テープのたるんだカセツトテー
プを往復走行可能なメカニズムに装着し、反転再
生させた場合、第3図において、反転側巻取リー
ル台30が回りテープを巻取りはじめるが、テー
プがたるんでいるため、正転巻取側リール台31
は回転せず止まつたままである。このため、テー
プ終端と誤判断してしまうという問題点があつ
た。
Problems to be Solved by the Invention However, in such a cassette tape end detection method, when a slack cassette tape is mounted on a mechanism capable of reciprocating and the tape is reversed and played, the reversal side in FIG. The take-up reel stand 30 starts to take up the tape, but since the tape is slack, the reel stand 31 on the normal rotation take-up side starts to take up the tape.
remains stationary and does not rotate. For this reason, there was a problem that the end of the tape could be mistakenly determined.

本発明はこのような問題点を解消するものであ
り、簡単な構成で、誤動作を防ぐ優れたテープレ
コーダを提供するものである。
The present invention solves these problems and provides an excellent tape recorder that has a simple configuration and prevents malfunctions.

問題点を解決するための手段 上記問題を解決するために本発明のテープレコ
ーダは、正転巻取側リール台の回転を検知する手
段を備えた往復走行可能なメカニズムと、前記回
転検知手段の出力を入しその回転停止によるカセ
ツトテープの終端を検知する終端検知手段と、正
転再生、反転再生、停止等の動作指令を入力する
動作指令電気スイツチ手段と、前記終端検知手段
による終端検知が前記動作指令電気スイツチ手段
による動作指令入力直後のテープたるみによるも
のであるか通常動作によるものであるかによつて
リール台が停止してテープ終端と判断するまでの
終端検知時間の設定を変える終端検知時間切換手
段と、その終端検知時間切換手段が通常動作によ
る終端検知状態にある場合、前記終端検知手段に
よる終端検知があつた時にテープ終端と判断して
前記メカニズムを制御する制御手段とを備えたも
のである。
Means for Solving the Problems In order to solve the above problems, the tape recorder of the present invention includes a reciprocating mechanism equipped with means for detecting the rotation of the normal rotation take-up reel stand, and a mechanism capable of reciprocating the rotation of the rotation detecting means. an end detection means for inputting an output and detecting the end of the cassette tape by stopping its rotation; an operation command electric switch means for inputting operation commands such as forward playback, reverse playback, and stop; A terminal end that changes the setting of the end detection time until the reel stand stops and the end of the tape is determined depending on whether it is due to tape slack immediately after the operation command is input by the operation command electric switch means or due to normal operation. A detection time switching means, and a control means for determining the end of the tape when the end detection means detects the end and controlling the mechanism when the end detection time switching means is in an end detection state due to normal operation. It is something that

作 用 上記のような構成により、本発明のテープレコ
ーダは動作指令入力直後と、通常動作時で、カセ
ツトテープ終端検知時間を自動的切換えることに
より、たるみのあるカセツトテープを装着し、再
生させたときの誤終端検知動作を防ぐこのができ
る。
Effect With the above-described configuration, the tape recorder of the present invention automatically switches the cassette tape end detection time immediately after an operation command is input and during normal operation, so that a slack cassette tape can be loaded and played. This can prevent erroneous termination detection operations.

実施例 以下、本発明の一実施例のテープレコーダを図
面を参照して説明する。
Embodiment A tape recorder according to an embodiment of the present invention will be described below with reference to the drawings.

第1図は本発明の一実施例を示す要部のブロツ
ク図であり、1は往復走行可能なメカニズム、2
は正転巻取側リール台、3はこのリール台の回転
を検知する手段、4は検知手段3の出力を入力
し、カセツトテープの終端を検知する手段、5は
動作指令と検知手段3の出力を入力し、終端検知
時間の自動切換を行なう切換手段で、この出力は
終端検知手段4に入力されている。6は正転再
生、反転再生、停止等の動作指令を出力する電気
スイツチ手段、7は動作指令と終端検知手段4の
出力を入力して論理処理し、メカニズム1を制御
する制御手段である。
FIG. 1 is a block diagram of essential parts showing an embodiment of the present invention, in which 1 is a mechanism capable of reciprocating movement;
3 is a means for detecting the rotation of the reel stand, 4 is a means for inputting the output of the detection means 3 and detecting the end of the cassette tape, and 5 is a means for receiving the operation command and the detection means 3. This switching means inputs the output and automatically switches the end detection time, and this output is input to the end detection means 4. Reference numeral 6 denotes an electric switch means for outputting operation commands such as normal rotation reproduction, reverse reproduction, and stop, and 7 denotes a control means for inputting the operation commands and the output of the end detection means 4 and performing logical processing to control the mechanism 1.

そして、制御手段7、検知手段4、切換手段5
の機能をマイクロコンピユータMで実現したもの
である。
Then, the control means 7, the detection means 4, the switching means 5
This function is realized by microcomputer M.

第2図は、このマイクロコンピユータMの処理
動作の要部を示すフローチヤートである。以下、
この図にもとづいて、本実施例の動作説明をす
る。まず、正転再生動作指令を入力するとステツ
プ20に進み、入力直後なのでステツプ21に進
み、テープ終端検知時間をT1に設定される。の
ちメカニズムが所望の動作モードになり、リール
台が回転し始めると、ステツプ20,21,23
と進みテープ終端検知時間がT2(T1>T2)に再
設定される。
FIG. 2 is a flowchart showing the main part of the processing operation of this microcomputer M. below,
The operation of this embodiment will be explained based on this figure. First, when a normal rotation reproduction operation command is input, the process proceeds to step 20, and since it is immediately after input, the process proceeds to step 21, where the tape end detection time is set to T1 . Later, when the mechanism is in the desired operating mode and the reel base begins to rotate, steps 20, 21, 23
Then, the tape end detection time is reset to T 2 (T 1 >T 2 ).

この状態でテープ終端になり、リール台が停止
するとステツプ20,22,24と進みテープ終
端検知時間をカウントし、T2に達すると(T1
T2であるからT2が先に来る)テープ終端と判断
する。
In this state, when the end of the tape is reached and the reel stand stops, the process proceeds to steps 20, 22, and 24, counting the tape end detection time, and when T 2 is reached (T 1 >
T 2 , so T 2 comes first) is determined to be the end of the tape.

次にたるんだテープを装着し、反転再生させた
場合、前例同様にまず終端検知時間がT1に設定
される。しかし反転再生でしかもテープたるみが
あるため、正転側のリール台は回転せず、ステツ
プ20,22,24と進んでテープ終端検知時間
をカウントするが、こんどは終端検知時間がT1
に設定されているため、前例のようにT2までカ
ウントしてもテープ終端と判断されない。そして
T1をカウントするまでにたるみが巻取られ、正
転側リール台が回転し始め、ステツプ20,2
2,23と進み、再びテープ終端検知時間がT2
に設定される。
Next, when a slack tape is loaded and played in reverse, the end detection time is first set to T 1 as in the previous example. However, since it is a reverse playback and there is tape slack, the reel stand on the forward side does not rotate, and the process proceeds to steps 20, 22, and 24 to count the tape end detection time, but this time the end detection time is T 1
Therefore, even if you count up to T 2 as in the previous example, it will not be determined that the tape is at the end. and
By the time T 1 is counted, the slack has been taken up, the normal rotation side reel table begins to rotate, and steps 20 and 2 are completed.
2, 23, and the tape end detection time is T 2 again.
is set to

このように操作指令入力直後と、通常状態でテ
ープ終端検知時間の切換えを行なう手段を設ける
ことにより、テープのたるみなどによるテープ終
端検知の誤動作が防げる。
By providing means for switching the tape end detection time immediately after the operation command is input and in the normal state, it is possible to prevent tape end detection from malfunctioning due to tape slack or the like.

発明の効果 本発明は、リール台回転検出手段を設けた往復
走行可能なメカニズムと、テープ終端検知手段と
テープ終端検知時間切換手段を具備したものであ
り、したがつてたるみのあるカセツトテープを装
着し、反転再生させたときの終端検知の誤動作を
防ぐことができ、実用上きわめて有利なものであ
る。
Effects of the Invention The present invention is equipped with a reciprocating mechanism equipped with a reel stand rotation detection means, a tape end detection means, and a tape end detection time switching means. However, it is possible to prevent erroneous operation of end detection when performing reverse playback, which is extremely advantageous in practice.

【図面の簡単な説明】[Brief explanation of drawings]

第1図は本発明の一実施例の要部ブロツク図、
第2図はマイクロコンピユータの制御手順を示す
フローチヤート、第3図は従来例の要部ブロツク
図である。 1……往復走行可能なメカニズム、2……正転
側巻取リール台、3……リール台回転検知手段、
4……終端検知手段、5……テープ終端検知時間
切換手段、6……動作指令電気スイツチ手段、7
……制御手段。
FIG. 1 is a block diagram of essential parts of an embodiment of the present invention.
FIG. 2 is a flowchart showing the control procedure of the microcomputer, and FIG. 3 is a block diagram of the main part of a conventional example. 1... Mechanism capable of reciprocating, 2... Normal rotation side take-up reel stand, 3... Reel stand rotation detection means,
4...Tape end detection means, 5...Tape end detection time switching means, 6...Operation command electric switch means, 7
...control means.

Claims (1)

【特許請求の範囲】[Claims] 1 正転巻取側リール台の回転を検知する手段を
備えた往復走行可能なメカニズムと、前記回転検
知手段の出力を入力しその回転停止によるカセツ
トテープの終端を検知する終端検知手段と、正転
再生、反転再生、停止等の動作指令を入力する動
作指令電気スイツチ手段と、前記終端検知手段に
よる終端検知が前記動作指令電気スイツチ手段に
よる動作指令入力直後のテープたるみによるもの
であるか通常動作によるものであるかによつてリ
ール台が停止してテープ終端と判断するまでの終
端検知時間の設定を変える終端検知時間切換手段
と、その終端検知時間切換手段が通常動作による
終端検知状態にある場合、前記終端検知手段によ
る終端検知があつた時にテープ終端と判断して前
記メカニズムを制御する制御手段とを備えたこと
を特徴とするテープレコーダ。
1. A reciprocating mechanism equipped with means for detecting the rotation of the normal take-up reel stand, an end detection means for inputting the output of the rotation detection means and detecting the end of the cassette tape due to the stoppage of rotation; An operation command electric switch means for inputting operation commands such as reverse playback, reverse playback, stop, etc., and whether the end detection by the end detection means is due to tape slack immediately after the operation command input by the operation command electric switch means or not, and normal operation. and an end detection time switching means that changes the setting of the end detection time until the reel stand stops and determines the end of the tape depending on whether the reel stand is stopped and the end of the tape is determined, and the end detection time switching means is in an end detection state in normal operation. and control means for determining the end of the tape when the end detection means detects the end of the tape and controlling the mechanism.
JP59236130A 1984-11-09 1984-11-09 Tape recorder Granted JPS61115262A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP59236130A JPS61115262A (en) 1984-11-09 1984-11-09 Tape recorder

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP59236130A JPS61115262A (en) 1984-11-09 1984-11-09 Tape recorder

Publications (2)

Publication Number Publication Date
JPS61115262A JPS61115262A (en) 1986-06-02
JPH0510736B2 true JPH0510736B2 (en) 1993-02-10

Family

ID=16996200

Family Applications (1)

Application Number Title Priority Date Filing Date
JP59236130A Granted JPS61115262A (en) 1984-11-09 1984-11-09 Tape recorder

Country Status (1)

Country Link
JP (1) JPS61115262A (en)

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5138329U (en) * 1974-09-17 1976-03-22
JPS5719544B2 (en) * 1977-08-22 1982-04-23

Family Cites Families (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS6336507Y2 (en) * 1980-07-04 1988-09-28
JPH026504Y2 (en) * 1981-04-14 1990-02-16

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5138329U (en) * 1974-09-17 1976-03-22
JPS5719544B2 (en) * 1977-08-22 1982-04-23

Also Published As

Publication number Publication date
JPS61115262A (en) 1986-06-02

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