DE3222487A1 - Tape-cassette recorder - Google Patents

Abstract

A tape-cassette recorder has a device for recording variously coded address signals onto a magnetic tape for magnetic tape recording and a device for searching the tape for a specified address signal upon playback. Before any information is recorded, an address signal selected according to the type of information to be recorded is first of all recorded onto the recording tape, and the information is recorded after this address. When the code is specified upon playback, the recording tape is transported at a relatively high search speed and when one of the address signals with the specified code is picked up, the tape transporting speed is reduced to the playback speed in order to reproduce the information following the address signal. When reproduction of the information has been completed and the next address signal is picked up, the tape transporting speed is changed again to the search speed, in order to locate the next address signal with the specified code. All items of information of the desired type are consequently selectively reproduced.

Description

Tape cassette recorder

The invention relates to a tape cassette recorder which is used for reproduction a selected type of information from various types of recorded Information is appropriate.

Tape cassette recorders are now in use far and wide, e.g. Am Form of stereophonic cassette recorders, portable miniaturized cassette recorders and the like. Of these, portable cassette recorders are often used for recording used by meetings, conferences, lectures and the like.

In addition, the portable cassette recorder can be used as an "audible memory aid" used to record various things.

If the cassette recorder is used, a recording To make of a clash, it is often desired to use the words of a special one To reproduce the participant in a targeted manner.

If, on the other hand, the recorder is used as an audible memory aid for recording various Things like outputting timetables D and the like is used, it would be pleasant if one could reproduce something specific from the recorded things.

Even when recording different musicians or different types of music many users want from tape recorders the music of one specific musician or a special kind.

A method is known in which melodies with intervals between successive melodies are recorded first and then when played the number of spaces is counted to find the beginning of a desired melody. However, there is no known method in which melodies of a desired type are selected randomly recorded melodies of various kinds can be played back in a targeted manner can.

The object of the invention is to provide a tape cassette recorder to create a desired type of information from randomly recorded can display different types of information in a targeted manner.

To solve this problem, the tape cassette recorder according to the invention means for recording an address signal corresponding to Art of the information to be recorded has been encoded before each recording, one Device for searching for the location of desired address signals during playback and means for controlling the transport speed of the tape so that the tape is transported at a high speed during the search and, after one of the desired address signals has been found, with a Playback speed is transported to an information of the desired Type accompanied by the address signal.

When the reproduction of information of the desired type is finished and the next address signal is picked up, the tape transport speed becomes Changed back to the high speed and searching for the next one you want Address signal is carried out.

Preferably, the tape recorder according to the invention is so constructed; that it can be used in normal record / record mode without using the Address signal and in the selection mode according to the invention using the Address signals can be operated.

The address signals are generated using e.g. B.

recorded in a variety of address keys.

These address keys can also be used to designate during playback of a desired address signal, that of the information to be given again in a targeted manner can be used. It is also possible to use different keys to determine of the desired address signal for the selected reproduction of information although this is in view of the resulting larger overall size of the Tape recorders are generally not preferred.

The invention is illustrated below with the aid of exemplary embodiments Described in more detail with reference to the drawings. It shows: Figures 1 e 2A, 2B and 3 each representations of several arrangement examples for recording information and address signals on a magnetic tape for magnetic recording by means of a tape recorder according to the invention, Figures 4 and 5 representations for explanation, like the tape during the selected playback of a desired type of information is transported according to the invention, Fig. 6 is a somewhat more precise representation of the Explanation of how the tape is transported during playback according to the invention, 7 is a perspective view of a tape cassette recorder according to a Embodiment of the invention, Fig. 8 is a block diagram showing an example of the electrical construction of the tape recorder according to the invention and figures 9 and 10 are perspective views of other exemplary embodiments of the invention.

Reference is first made to FIG. One for magnetic tape recording Serving magnetic tape 10 carrying a recording track 10a is turned in the direction of Arrow C is transported, thereby recording and reproducing in the direction of arrow C 'is carried out. According to the invention, prior to recording, a Information encoded according to the type of information to be recorded Address signal recorded. If any other information after the end of recording of the foregoing information is recorded, a corresponding first becomes the type of information to be recorded and then the following Information recorded. If z. B. information of type A is to be recorded, becomes a corresponding the type A of information encoded address signal a previously recorded. If another piece of information is of a different type B is to be recorded, an address signal is coded according to the type B of information b recorded first.

Fig. 1 shows an example of recorded portions of a magnetic tape for magnetic tape recording with a tape recorder according to the invention for a monorale recording has been recorded.

For recording in stereo, as shown in Fig. 2A, address signals become a and b recorded on one of the stereo tracks 10b and 10b ', while corresponding Information on both stereo tracks 10b and 70b "as denoted by A, A ', B and B' is to be included.

As an alternative, it is possible to transfer the address signals to one of the stereo tracks 10b and 10b 'and the information only on the other track, as in Fig.

2B.

Each address signal can consist of two or more parts, such as by 1a and 2a denoted in Fig. 3, exist, one wider and the other can be narrower, thereby classifying the information to be recorded more precisely can be.

The tape recorder according to the invention is expediently with switching means to change --- the operating mode between the recording / playback mode according to of the invention and the ordinary recording / reproducing operation.

rig 4 shows how the recording tape is playing during the selected playback a desired type of Information from different types of Information randomly recorded on the tape is transported will. In Fig. 4, a variety of information of two types is recorded on a magnetic tape 10 recorded for magnetic tape recording, with information A1 to An on the one Type A in this order of address signals a (a1 to an) and information B1 to Bn of the other type B in this order of address signals b (b1 to bn). The address signals a1 to an are corresponding to the information A1 to An, which are accompanied by them, are coded and are identical to one another.

The same applies to the address signals b1 to bn.

When the address signal d on the assumption that the information of type B are to be reproduced in a targeted manner, on a later to be described Manner is determined, the head of the tape recorder with the tape 10 brought into contact, and the tape is driven at a high speed (this speed is referred to as search speed in the following) until the first Address signal d, i.e., address signal b1, is taken out. When the first address signal b1 is taken off, the tape transport speed becomes the ordinary playback speed decreased in order to reproduce the information B1 following the address signal bl. The tape transport speed is kept at the playback speed, until the information B1 is completely reproduced and the next address signal is removed.

When the next removed address signal from the address signal b is different, the tape transport speed is returned to the Search speed changed. The tape transport speed is kept at the search speed, until the second address signal b, d. H.

the address signal b2, is taken off, and then again to the reproducing speed decreased When the address signal b is determined, all of the information becomes B1 until Bn is automatically played back in a targeted manner. When determining the address signal is changed to the address signal a in the course of playback, the recording becomes ~ band 10 after the end of the reproduction at the time of the change of destination of the address signal reproduced information, transported back to its origin. Thereafter, the address signals a are located in a similar manner and the information Al to An obtained in this order from the address signals a1 to an are specifically reproduced as shown in FIG. 5.

However, this mode of operation is not essential to the invention; the system can be designed in such a way that only the information of type A which is on recorded on the remainder of the tape 10 without rewinding the tape are reproduced when the determination of the address signal in the course of reproduction of the type B information is changed from the address signal b to the address signal a will.

6 shows in more detail how the recording tape is played back according to FIG of the invention is transported g, using the address signals a as an example Find. As shown in Fig. 6, during reproduction, one of an address signal a1, information A1 accompanied the recording tape with the relatively low Playback speed transported, and as soon as the tape head begins, the next address signal (the one at This specific example a2 or a) is to be removed, a circuit for transporting of the take-up tape, so that the tape transport speed in the relatively high search speed is changed. When the address signal is detected as a a comparator (which will be described later) is turned on to determine the tape transport speed due to the playback speed.

Then, the next information following the address signal a2 becomes A2 is played back with the tape moving at the playback speed will. Again immediately after the tape head begins, the next address signal (the bl or b) is to be removed, the circuit for transporting the receiving tape becomes reset, which makes the tape transport speed into the search speed will be changed.

When the address signal is found to be d, the comparator held in the off state and the tape transport speed is thus held at search speed until the next address signal a (a3) is detected will.

It is preferred that the playback circuit is only operated when playback is performed, so that while searching for the particular Address signal no noise is generated.

Referring to FIG. 7, there is shown a tape recorder according to an embodiment of the invention mainly by specifying the mechanical structure in the described below. The tape recorder 11 according to this embodiment is included a tape cassette receiving part 12 disposed in the lower part thereof, a Mode selector switch 13 on one of its side faces for selecting one of two Modes of which one is the ordinary recording / reproducing mode and the other is the mode as described above, the address signal for purposefully reproducing a desired type of information from randomly recorded different types of information. The mode selector switch 13 can be omitted if the tape recorder is designed so that when the Keys for the latter operating mode are actuated, the operating mode automatically is changed to the latter mode of operation, or so that the mode of operation is automatic is changed to the latter when a detectable agent is detected on a cartridge indicating that the recording tape according to the invention using the Address signals has been recorded.

On the front surface of the recorder 11 are angeord net a rewind button 14, an accelerator button 15, a play button 16, a stop button 17 and a Record button 18, which are common with conventional tape recorders. The recorder 11 according to this embodiment is further provided with on the front surface Address keys 19a, 19b, 19c and 19d for inputting address signals and one Pause button 20, the function of which will become clear later. It is also an address signal display device 21 for displaying the input address signal.

When recording and playback in the manner of the selected playback using address signals as described above, is performed, the recorder 11 according to this embodiment is as follows operated with the mode selection switch 13 on the side of the selected playback mode is posed.

Record 1) The record button 18 is pressed.

2) One of the address keys 19a to 19d is pressed to select one of the kind record the address signal corresponding to the information to be recorded. That The input address signal is displayed in digital form on the display device 21 displayed. At the same time, the recording tape is started in order to record kick off. If you do not want to start recording yet, the pause button is activated 20 pressed. The pause button 20 only has the effect of preventing the tape from advancing and does not delete any operating mode that has been set up to this time is.

3) If you want to stop recording completely, will the stop button 17 is pressed. When the stop button 17 is pressed, all of the set Operating modes deleted.

If the recording is to be resumed, it must accordingly the record key 18 and one of the address keys 19a to 19d according to the kind of the ones to be recorded Information to be pressed again.

If the recording is to be temporarily interrupted without the recording mode is canceled, the pause button 20 is pressed. In this If this is the case, the recording can be started by pressing again the pause button 20 to be resumed. If the address signal is to be changed, will one of the address keys 19a to 19d corresponding to the desired address signal is pressed after the pause key 20 has been pressed, producing a new address signal is recorded and recording is automatically restarted.

A magnetic recording tape that can contain various types of in format ions ~ accompanied by address signals coded according to the type of information, thus can be obtained.

When a desired type of information is reproduced in a targeted manner is, the tape recorder 11 is operated according to this embodiment as follows.

Playback 1) One of the address keys 19a to -19d corresponding to the Address signal of the type of information / to be reproduced is pressed whereby the search for the specific address signal is started, whereby the Tape transported at the search speed and the specific address signal is displayed on the display device 21 When the recording tape is in a Is located in the intermediate position, the tape is rewound once and the search for the designated address signal is started from the beginning of the tape. If a certain Signal is picked up, the tape transport speed is automatically set to the Playback speed changed to start playback as described above.

2) If you want to stop playback completely, will the stop button 17 is pressed while if the playback is only temporarily interrupted the pause button becomes 20 pressed.

3) When another type of information is being reproduced in a targeted manner one of the address keys 19a to 19d becomes according to the kind of information pressed. This causes the tape to rewind and search for the new one Address signal and the reproduction of the information that is accompanied by it, is carried out in the same way as described above.

4) By pressing the stop button twice in succession 17 causes the lid of the cassette receiving part 12 to be opened, so that the tape cassette contained therein can be removed.

The embodiment shown in Fig. 7 is a basic shape and the functions of the various buttons and buttons need not be based on those described above be limited. In particular, the functions of the record button 18, address buttons 19a to 19d and the stop button 17 can be modified in various ways. aside from that it is possible to use buttons 14 to 16 for both normal record / playback operation as well as the selected playback mode.

Referring to Fig. 8, an embodiment of the electrical Structure of a tape recorder according to the invention described. The electrical structure according to FIG. 8 does not exactly correspond to the mechanical structure shown in FIG is.

A recording head 30 and a reproducing head 31 are arranged so that that they are facing a magnetic tape 10 for magnetic tape recording, which is of a Driving roller 33 driven by a drive motor 32 is driven, is held. The recording head 30 is connected to a recording amplifier 34, to which a microphone 35 is connected to carry out the recording. To the Recording amplifier 34 is also a clock pulse generator 36 for recording address signals connected by means of a first changeover switch 37 and an address output circuit 38.

A frequency divider 39, a counter 40, a comparator 41 (the previously 6) and a second changeover switch 42 are in series and connected between the first changeover switch 37 and the address output circuit 38 parallels are connected to the line directly connecting them. To the comparator 41, address keys 43 are connected so that the comparator 41 receives an address signal input with the number of clocks counted by the counter 40.

A playback preamplifier 44 is connected to the playback head 31, its output to a speaker 48 through a high pass filter 45, handover output circuit 46 and a playback amplifier 47 connected in series. A low-pass filter 49 is between the first switch 37 and the node of the playback preamplifier 44 and the high-pass filter 45 switched, so that the frequency divider 39 and the address output circuit 38 either to the clock pulse generator 36 or the low-pass filter 49 by means of of the first switch 37 are connected.

The second changeover switch 42 is via a speed change circuit 50 connected to the line that the drive motor 37 and the re output circuit 46 connects so that a speed change signal from the speed change circuit 50, to both the drive motor 32 and the playback output circuit 46 is transmitted. The second switch 42 optionally connects the output of the Comparator 41 with either the address output circuit 38 or the speed change circuit 50. The speed change circuit 50 receives a signal from the first changeover switch 37 to be reset thereby.

The operation of the electrical structure shown in Fig. 8 becomes now described.

Record The first and second changeover switches 37 and 42 are set to respective recording operation pages indicated by REC in Fig. 8 are set, so that the clock pulse generator 36 to the frequency divider 39 and the address output circuit 38 is connected, while the comparator 41 is connected to the address output circuit 38 is connected. When a desired address signal is obtained by pressing one of the address keys 43 is input, the comparator 41 compares the input address signal with the number of clock pulses received by the counter 40 after division by the frequency divider 39 are counted and generates a coincidence signal when the two are with each other to match. The Koinzidenisignal is through the second switch 42 to the Address output circuit 38 is transmitted to enable the supply of clock pulses to the Interrupt recording amplifier 43. Accordingly, one becomes the input address signal corresponding number of clock pulses on the magnetic tape 10 for magnetic tape recording tion recorded by the recording head 30. During the recording, the magnetic tape is for magnetic tape recording at a predetermined recording speed transported. After the entered address signal is recorded on the tape 10 has been, audio signals coming from the microphone 35 are recorded thereon. As described above, the address signal corresponding to that to be recorded thereafter Information selected.

Playback The first switch 37 is on the side of the low-pass filter 49 is set, and the second switch 42 is on the side of the speed change circuit 50 posed. When a desired address signal by pressing one of the address keys 43 is input, the magnetic tape 10 becomes for magnetic tape recording at the search speed transported, which is relatively high, and the recorded address signals that are read out by the playback head 31, are sent to the frequency divider 39 via the playback preamplifier 44 and the low-pass filter 49 are transmitted. Each read out The address signal is divided by the frequency divider 39 and then by the counter 40 counted.

The count of the counter 40 is entered with the specified or Address signal compared by the comparator 41. During this search process, the reproduction output circuit 46 is kept in the off state. Therefore audio signals coming from the playback preamplifier 44 cannot reach the loudspeaker 48 arrive.

When the comparator 41 generates a coincidence signal, the speed change circuit operates 50 to the drive motor a signal to its Turning speed so that the magnetic tape 10 for magnetic tape recording at the reproducing speed is transported. At the same time, the speed change circuit 50 is conducting to the reproduction output circuit 46 a signal which the reproduction output circuit 46 turns on so that the playback output is transmitted to speaker 48. The playback sound output from playback preamplifier 44 is passed through the high pass filter 45 and the re-output circuit 46 to the playback amplifier 47, whereby the information following the specific address signal is reproduced.

If the cassette tape recorder according to the invention intended for it is to be used as an "audible memory aid", its portable part must be small be in size and light in weight.

Thus, the cassette tape recorder according to the invention can be two parts as shown in FIG. The tape cassette recorder shown in FIG comprises a base part 4 and a loudspeaker part 5. For recording only needs the base part 5 can be worn. The base part 5 is designed so that during of recording, the recording can be monitored through a headphone 6 and therefore only contains components that are necessary for recording and monitoring are, namely, a tape cassette receiving part, a driving part, an address signal recording circuit, a recording circuit and a monitoring circuit. The part to be carried can thus be greatly miniaturized and made light in weight. It is preferred that the basic part 4 of a rechargeable battery is smaller Size can be supplied with energy and that the battery by an energy source is charged in the loudspeaker part 5 which is automatically connected to it, when the base part 4 is connected to the loudspeaker part 5.

In another embodiment, shown in FIG. 10, is the function of each button 7 and each key 8 by an unevenness pattern on it or their surface, so that even a person with poor eyesight, whose function can be read with your finger, so that you can use the tape cassette recorder according to this embodiment can easily operate.

The tape cassette recorder according to the invention can suitably Can be designed like a paperback with a cover on its inside has a note paper. In this case, the cover is preferably designed in such a way that that it interrupts the connection to the battery when closing, so that an unnecessary Consumption of the battery is avoided.

Claims (3)

Tape cassette recorder P a t e n t a n t a n t re u c h e 1. Tape cassette recorder with a device for receiving a magnetic tape cassette for magnetic tape recording, a recording device, a playback device, a device for Transporting the take-up tape at a high speed and one pop Direction for rewinding the recording tape, g e k e n n n z e i h n e t d u r c h means (19a to 19d, 36, 38, 39, 40, 41, 43) for recording variously encoded address signals (a, b) on the recording tape (10), a device (31) to search the recording tape (10) for address signals (a, b} the one desired Having codes upon playback, and means (50) for controlling the tape transport speed, which controls the tape transport speed so that the receiving tape (10) with a high speed while searching for the address signals (a, b) with the desired code and with a playback speed is transported if one of the address signals (a, b) with the desired Code found is. 2. Tape cassette recorder according to claim 1, d a -d u r c h g e k e n It should be noted that the means for recording the address signal comprises means for inputting an address signal code to be recorded consisting of a There is a multitude of push buttons (19a to 19d, 43). 3. Tape cassette recorder according to claim 2, d a -d u r c h g e k e n Note that the keys (19a to 19d, 43) are used as a means of inputting an address signal code to be found can be used.