JP2995799B2 - Answering machine - Google Patents

Description

Description: FIELD OF THE INVENTION The present invention relates to an answering machine for automatically answering incoming calls and recording the message of the caller.

2. Description of the Related Art Conventionally, an answering machine that has a plurality of OGMs (a message when a tape is full, a message when a message is transferred, etc.) in addition to an OGM for a normal response and records these in a series on a single OGM tape has been developed. is there. In such an answering machine, cueing of each OGM is performed by the following configuration.

Hereinafter, the rotating reel on which the tape is wound during reproduction is referred to as a winding reel, and the rotating reel on which the tape is fed during reproduction is referred to as a payout rotating reel. A rotation detection circuit is provided on the reel on the payout side,
Cueing of each OGM is performed by comparing the number of rotations from the tape start point output by the rotation detection circuit with the number of rotations of the head position of each OGM stored in the storage means.
The number of revolutions stored in the storage means is set in the apparatus in advance to limit the maximum recording time of each OGM.

The reason why the rotation detecting circuit is provided on the reel on the payout side is as follows. That is, even if the apparatus rotates the take-up reel in response to a recording or reproduction command, if the rotation detection circuit does not output a signal, it is possible to immediately detect that the tape has run out and recording or reproduction cannot be performed.

Problems to be Solved by the Invention However, the above-described configuration has the following problem in the case where the OGM is cueed based on the number of rotations of the pay-out reel from the tape start point.

15 minutes tape or 30 minutes or 60 tapes
Some tapes are used, and the amount of tape travel per rotation in the outer peripheral portion is different from each other, and the length of the tape sent in one rotation at the tape start point is different from each other. Also usually
OGM is recorded from the beginning of the tape. Then, for example, when a rotation speed at which OGM for 30 seconds can be recorded when a 90-minute tape is used is set in advance, when a 15-minute tape is used, the OGM recordable time is shortened.

In other words, the reel rotation speed on the payout side of the 15-minute tape is
Since the speed is faster than that of a 90-minute tape, the number of rotation pulses output from the rotation detection unit per unit time increases, and the counter counts up at a correspondingly faster tempo. Therefore 15
When the shared tape is used, the recordable time per OGM becomes short, and thus the recording time per OGM greatly differs depending on the type of the tape used.

In this way, if the OGM recording time varies greatly depending on the type of tape used, if the user attempts to rewrite only one of the multiple OGMs, the recording will be started in advance from the tape type used at that time. If the prediction is not accurate, the time has to be expired before the recording is completely completed, and the recording has to be started again, which is inconvenient.

Also, when performing cueing at the time of OGM rewriting, the rotation speed of the pay-out reel with respect to the rotation speed of the take-up reel differs depending on the type of tape used. The time required for cueing differs depending on the type. In the case where the OGM is rewritten by remote control from the outside via a telephone line, if the time required for cueing is not constant in this way, if the user outside is waited for some time, it will not be It is uncertain whether it is not operating for some reason or in the middle of the cueing operation, and it is uneasy.

Also, when the tape length becomes longer, near the tape start point,
There has been a problem that the diameter of the reel on the pay-out side is increased, and the length of the tape fed in one rotation is long, and the cueing accuracy is deteriorated.

Means for Solving the Problems To achieve this object, the answering machine of the present invention
When a recording tape for recording a plurality of messages in a series is attached, a rotation detecting means for detecting rotation of a reel on the winding side of the recording tape, and a rotation speed for counting a pulse signal output from the rotation detecting means. Counting means, storage means for storing a count value of each start point of each message, selection means for selecting any of the messages, and storage means for storing the start point of the message selected by the selection means. Counter comparing means for comparing the counted value with the count value of the rotation number counting means, stopping means for stopping the tape running means when the counter comparison means outputs a coincidence signal, and the rotation number in a reproduction mode. When the counting means counts a predetermined number of times or more in a predetermined time, it is determined that the recording tape is out of tape. It is obtained by a-loop breakage determination means.

Operation As described above, since the running of the tape is controlled by the number of rotations on the winding side, the amount of running tape per rotation depends on the diameter of the tape reel. Therefore, in the first portion of the tape, that is, in the portion near the reel, the tape running amount can be determined quite accurately from the tape reel rotation speed, and accurate tape running control becomes possible.
Especially when used for OGM that records only the first part of the tape, the OGM can always be found accurately and quickly.

Embodiment An embodiment of the present invention will be described below with reference to the drawings. In this embodiment, two response messages (hereinafter OG)
This is an example in which a C-cassette can be used for an OGM tape.

FIG. 1 is a block diagram showing a schematic configuration of an answering machine in one embodiment of the present invention, and FIG.
FIG. 3 is an explanatory diagram showing a tape reel rotation number detecting device, FIG. 4 is a flowchart showing the operation of the answering machine, and FIG. 5 shows a tape break detecting state. It is a flowchart.

In FIG. 1, 1 is a telephone line, 2 is a line closing means for closing and opening the telephone line 1, 3 is a bell detecting means for detecting a bell signal from the telephone line 1, and 4 is an OGM. Amplification unit consisting of a line sending amplifier to perform and a line input amplifier to record ICM, 5 is an OGM tape, 6 is an ICM tape, 7 is a cassette deck for recording and playing back OGM tape 5 and ICM tape 6, and 8 is a current This is a rotation counter of the OGM tape for measuring the position of the OGM.

11 is a ROM, OG when the starting point of the OGM tape 5 is set to 0
Number of rotations to M1 marking start point (5 rotations), number of rotations to OGM1 message start point (6 rotations), number of rotations to OGM2 marking start point (100 rotations), and rotation to OGM2 message start point The number (101 rotations) is written (see FIG. 2). Reference numeral 9 denotes a comparison counter which receives information on the marking start point position of each OGM (1, 2) from the ROM 11 and counts it. Reference numeral 10 denotes a comparator which compares the OGM tape rotation counter 8 with the comparison counter 9.

Reference numeral 12 denotes comparison information canceling means. When the mark signal could not be detected, or when the power was turned on and the OGM cueing was not performed yet, the OGM tape would be rewound to the starting point to write the mark signal again. The canceling means 12 prevents the detection of the mark based on the comparison information from the counter comparing means. Reference numeral 13 denotes mark detection means, which is constituted by a filter. Reference numeral 14 denotes a marking counter for writing a signal corresponding to eight changes on the OGM tape.

Reference numeral 15 denotes a period timer for measuring the rotation period on the winding side of the OGM tape, and reference numeral 16 denotes a period timer comparing means for comparing the value of the period timer 15 with the rotation speed in the reproduction mode. An error counter 17 counts the number of errors as an error when the rotation speed is high by the period timer comparing means 16, a mark signal generator 18, and an OG
A selection switch for selecting M1 or M2. Reference numeral 20 denotes a RAM which stores whether the OGM mode is 1 or 2. Ie RAM20
The information indicating which OGM is selected at that time is written therein. When the user performs an operation of switching the type of OGM, the contents of the RAM 20 are rewritten according to the operation.

21 is control means for controlling the answering machine,
It is composed of a microcomputer. 22 is a microphone and 23 is an OGM recording / playback switch. 24 is a rotation detecting means.

Incidentally, the OGM tape rotation number counter 8, the comparison counter 9, the comparator 10, the ROM 11, the comparison information canceling means 1
2. The mark writing means 14, the cycle timer 15, the cycle timer comparing means 16, and the error counter 17 are provided in the control means 21 (microcomputer).

FIG. 3 shows the rotation detecting means 24. The method of detecting the number of rotations of the tape in this configuration is constituted by a circular magnet attached to the normal rotation side (winding side) of the rotating reel of the tape and a reed switch that switches by the magnetism of the magnet. When the reel on one side makes one rotation, the input signal for rotation detection is inverted eight times as shown in FIG. 4, and the tape running amount is measured by counting the number.

The operation of the answering machine configured as described above will be described below.

In FIG. 5, when the power is first turned on, the RAM2
Initialize 0 (step 1). Next, rewinding of the OGM tape 5 is started (step 2). When the rotation number counter 8 stops counting, it is determined that the rewinding is completed and the head has reached the tape start point.

As described above, information indicating which OGM is selected at that time is written in the RAM 20.
The determination of the M mode is made based on the information in the RAM 20.
However, since there is no such information in the initial setting process at the time of power-on, depending on the rewind amount of the OGM tape 5 at the time of the rewind operation in step 2, which OGM area was the head position before power-on. Is determined, and the result is recorded to determine the OGM mode (step 3).

In other words, if the rewind amount of the OGM tape 5 is more than 800 changes, it means that the OGM tape 5 was in the OGM2 area before the power was turned on.
Write OGM mode as 2 in RAM20, O when the change is less than 800
Since it is in the area of GM1, OGM is written as 1 in the RAM20. Thus, in the initial setting process, the OGM mode before the power is turned on can be known (step 4).
After determining the OGM mode, the rotation counter 8 of the OGM tape 5 is initialized to zero.

When the OGM mode is determined, the OGM mode is determined again. In the case of OGM1, the value of the number of changes 40 is taken out.
Then, this value is compared with the value counted by the rotation counter 8 of the OGM tape by the comparator 10, and the information is transmitted to the control means 21.

The control means 21 determines whether or not the OGM is near the start point of the designated OGM (step 5). When the 792 change is detected, the marking counter 14 is set, and the mark signal generated by the mark signal generating means 18 for eight changes is directly written on the tape (step 6). The mark signal is an intermittent tone on / off signal of 100 msec and is a tone burst signal.

Looking at the information of the comparator 10 while writing this mark signal, when it comes to the start point of each OGM area (point for 40 changes for OGM1, 800 points for OGM2), the marking counter 1
4 is operated to write a mark signal for an additional 8 changes (step 7), and then silent for another 4 changes (step 8). OGM playback and recording are in this position (O
GM1 is performed from the point of 52 changes, and OGM2 is performed from the point of 812 changes).

 The above is the operation in the initial setting process.

When recording OGM, press the recording / playback switch 23 to start recording and record a message from the microphone 22. When the OGM recording / reproduction switch 23 is pressed again, a silent signal for detecting the end of the message is written on the OG tape 5 and the recording is completed.

When a bell signal comes in from line 1, OGM
Therefore, when the recording or reproduction operation of the OGM is completed, the OGM tape 5 is caught up to the start point of the OGM.
In FIG. 6, the OGM mode is determined at the time of cueing (step 9).
If it is M2, the change number 800 is taken out of the ROM 11 and put into the comparison counter 9, the value counted by the rotation counter 8 of the OGM tape is compared with the comparator 10 and the information is transmitted to the control means. The control means 17 determines whether the signal is before or after the start point of the mark signal of each OGM.
Since it is after the start point of M, the OGM tape 5 is rewound (step 10). Judgment is made before or after the OGM start point even during rewinding of the OGM tape 5, and when it is behind, the rewinding is continued and the position of the mark signal start point (32 changes for OGM1, 32 changes for OGM2)
(792 change), and when it is determined that it is before, the process proceeds to the next step 11. In step 11, in order to accurately feed the tape to the start point of each OGM, it is determined whether or not the mark signal start point of each OGM has been reached (the point of the 32 change part in the case of OGM1, the point of 792 change in the case of OGM2) If it is not the start point, it is sent by fast forward, and if it is the start point, it is sent in the playback state. While sending in the playback state, it is determined whether or not it is equal to the starting point of OGM (40 changes for OGM1, 800 changes for OGM2) (step 12). If they are equal, mark signal detection is started (step 1).
3). When the mark signal disappears, four changes are reproduced (step 14). If the OGM mode stored in the RAM 20 is 1, change 52 if the OGM mode stored in the RAM 20 is 1, and if the OGM mode is 2, so that the counter will not be out of order even if the rotation detection has some noise. For example, 812 changes and the rotation speed of the rotation speed counter are initialized (step 15).

If no mark signal is detected in step 13, it is determined that the tape has been replaced, and the process returns to step 2 to rewind the OGM tape 5 to the beginning of the tape and write a mark signal.

With this configuration, if OGM1 is selected, OGM1
At the beginning of the call, the unit enters the bell standby state, and sends out OGM1 when an incoming call arrives. If OGM2 is selected, a bell standby state is set at the starting point of OGM2, and OGM2 is transmitted when a call arrives. When a silence signal after OGM transmission is detected, an incoming message is recorded, and the process returns to step 9 and returns to the OG as in the case of manual playback.
Performs the cueing operation of M and ends a series of incoming operations.

As described above, by detecting the rotation, the position slightly before the beginning of the OGM is detected, and then some playback is performed to detect the mark signal near the beginning of the OGM. Even after this, the position where the voice actually starts to be transmitted to the line is always constant. Therefore OG
M can always be sent to the opponent quickly without causing a truncation and the OGM can be accurately located. At this time, since the rotation detection is provided on the winding side, the length of the tape sent by one rotation of the reel is short, and the time for detecting the mark signal is shortened, and thus the time for cueing is shortened. In addition, the amount of tape travel per revolution depends on the diameter of the tape reel.In particular, when recording only at the first part of the tape as in OGM, the tape travel amount can be considerably Since the index can be accurately determined, it is possible to more accurately control the tape running.

Next, a method of detecting a tape break will be described with reference to FIG. If the conventional rotation detection circuit is provided on the payout side, and if the rotation detection circuit does not detect the rotation of the reel during recording or playback, it is determined that no more recording or playback can be performed due to tape breakage or end of tape. I was

When the detection is performed on the winding side, the winding side does not rotate in the rewind mode, so that it is determined as the tape start point. Further, in the fast-forward mode, the motor stops at the position of the rotation speed of OGM1 or 2, and cannot be detected. Therefore, in the present embodiment, the tape breakage is detected based on the rotation speed in the reproduction mode.

When performing recording and playback running with the cassette tape drive mechanism, the tape is sandwiched between the pinch roller and the capstan and pressed, and the tape runs by the stable rotation, but the tape sent out by the pinch roller and the capstan is not loosened. The tape is wound on the winding reel as described above. Therefore, the take-up reel tries to rotate at a speed faster than the speed of the tape sent out by the pinch roller and the capstan, but the tape is received by the tape in the reverse direction by receiving a force in the opposite direction by the tape. It is rotating at the same speed as the speed. In other words, when the tape is running normally, the rotation is low while constantly balancing the rotation of the pinch roller and the capstan, but the reel on the take-up side is irrespective of the rotation of the pinch roller and the capstan when the tape breaks. High rotation. Therefore, the tape breakage is detected by detecting that the take-up reel in the reproduction mode has exceeded a predetermined rotation speed. Note that the clutch mechanism on the fast-forward reel side is a technique commonly used in a tape deck, and a detailed description using drawings will be omitted.

Here, the detection method as described above will be described in an embodiment of the present invention.

First, as described above, when the tape is inserted normally, the rotation speed is slow, and the time required for one rotation of the take-up reel is about 1.6 seconds (minimum value). Otherwise, the rotation speed is high and it takes about 0.4 seconds (constant value) for one rotation.

From this, as shown in FIG. 5, when a rotation pulse is input from the rotation detecting means 24 to the control means 21 in the reproduction / recording state, the four changes (1/2 rotations) are counted by the period timer 15, and The period timer comparison means 16 compares whether four changes (1/2 rotation) are longer than 0.5 seconds (step 16). If the change is longer, it is determined to be normal and the error counter 17 is initialized (step 16).
17) If it is short, the rotation speed is high, so the error counter 17 counts it (step 18), and this counter becomes 4 (step 19), that is, each of the four consecutive four changes is 0.5 seconds. If it is shorter, it is determined that the tape has run out (step 20). In this case, no incoming call is made even if a bell is input (step 21).

Also, on the ICM recording tape side, a rotation detecting means is provided on the winding side, and it is possible to determine whether the tape has run out by the above-described detection method. In particular, when the pulse signal from the rotation detecting means is no longer output on the ICM tape side, it is determined that the tape has reached the end, and a control operation different from the above-described tape breakage can be performed. For example, if it is determined that the tape has run out, no response will be made even if a ring signal is input thereafter. , The tape is rewound to the starting point, and the next incoming call is answered as usual.

In this way, by detecting the rotation on the winding side, it is possible to distinguish between the end of the tape and the end of the tape, and to make the incoming operation different thereafter, thereby increasing the usability. Can be.

As described above, the present invention provides a rotation detecting means for detecting the rotation of the reel on the winding side of a recording tape, a rotation number counting means for counting a pulse signal output from the rotation detecting means, and each message. Storage means for storing the count value of each start point, selection means for selecting any one of the messages, and the count value and the rotation stored in the storage means for the start point of the message selected by this selection means. Counter comparing means for comparing with the count value of the number counting means, and stopping means for stopping the tape running means when the counter comparing means outputs a coincidence signal,
When the number-of-revolutions counting means in the reproduction mode counts a predetermined number of times or more in a predetermined time, a tape breakage determining means for determining that the recording tape has run out is provided, so that the rotation of the recording tape winding side can be performed. Since the running of the tape is controlled by the number, the running amount of the tape per rotation depends on the diameter of the tape reel. The time is almost constant, and is convenient when the user rewrites only a certain OGM.
In addition, since the first part of the tape can control the tape running accurately, especially when used for the OGM that records only the first part of the tape, the OGM is always accurate and fast.
Cueing can be performed, and the accuracy of OGM cueing can be improved.

[Brief description of the drawings]

FIG. 1 is a block diagram showing a configuration of a main part of an answering machine in this embodiment, FIG. 2 is an explanatory diagram showing two OGMs recorded on an OGM tape in the answering machine,
Fig. 4 is a schematic diagram showing the rotation number detecting device of the tape, Fig. 4 is an explanatory diagram of the output signal of the rotation number detecting device, and Figs. FIG. 7 is a flowchart showing a tape break detection state of the answering machine. DESCRIPTION OF SYMBOLS 1 ... Phone line, 2 ... Line closing means 3 ... Bell detecting means 4, ... Line sending amplifier 5 ... OGM tape, 6 ... ICM tape 7 ... Cassette deck, 8 ... Rotation speed counter 9 ... Comparison counter, 10 Comparator 11 ROM, 12 Comparison information canceling means 13 Mark detection means 14 Mark writing means 15 Period timer 16 Period timer comparison means 17 Error counter 18 Mark signal generator 19 Select switch 20 RAM 21 Control means Microphone 23 OGM recording / reproducing switch 24 Rotation detecting means

──────────────────────────────────────────────────続 き Continuation of the front page (56) References JP-A-50-80107 (JP, A) JP-A-60-154761 (JP, A) JP-A-62-119791 (JP, A) JP-A 62-19791 263738 (JP, A) (58) Fields investigated (Int. Cl. ⁶ , DB name) G11B 15/02 G11B 15/093 G11B 27/10-27/34 H04M 1/64-1/65

Claims (1)

(57) [Claims] 1. A tape running means for running a recording tape for recording a plurality of messages in a series, a rotation detecting means for detecting rotation of a reel on the winding side of the recording tape and outputting a pulse signal, A rotation number counting unit that counts a pulse signal output from the rotation detection unit; a storage unit that stores a count value of the counting unit corresponding to each start point of the plurality of messages; and any one of the plurality of messages. Selecting means for selecting; a counter comparing means for reading information indicating a start point of the message selected by the selecting means from the storage means and comparing the read value with the count value of the rotational speed counting means; Output means, a stop means for stopping the tape running means, and the rotation speed power in a reproduction mode. An answering machine, characterized in that the answering machine is provided with a tape breakage determining means for determining that the recording tape has run out when the counting means counts a predetermined number of times or more in a predetermined time.