FR2541031A1 - Method and device intended for the marking of particular places, especially areas for recording on a recording medium - Google Patents

Abstract

Method and device intended for the marking of particular places of a recording medium, comprising a pulse generator 11 generating pulses as the medium passes along, a pulse counter 12, a storage unit 13 for the state of the counter 12, a comparator 14 for comparing the state of the counter 12 and the contents of the storage unit 13 and an electronic assembly 17 for managing information transfers and for controlling means 18 for driving the recording medium, which are carried by the apparatus on which this recording medium is mounted.

Description

"Method and device for locating particular places, in particular recording areas on a recording medium".

 The present invention relates to methods and devices for locating particular places, in particular recording tracks on recording media for images, sounds, or any other information.

 Currently, the devices for recording and playing sound tapes arranged in particular in cassettes are equipped with automatic search devices at the start of the sequence which only allow, when the device is in operation, to return to a particular place on the tape. which is arranged on the device.

These currently known devices are of very limited use.

Indeed, the location identified is linked to the drive mechanism of the tape and, as a result, the tracking performed can only be used if the tape is kept in the device, recording or playing other tapes on this same device destroying the tracking done for this band.

 Systems are also known which make it possible to identify particular locations of recording media by recording on the recording medium of particular codes.

The disadvantage of this type of system is that it requires a particular track of the recording medium so that it limits the possible recordings on the tape.

 The object of the present invention is to remedy the drawbacks of the state of the art and proposes methods and devices which make it possible to # identify particular places on recording media, this identification not being supported by the storage medium. record and being directly associated with it.

 A method according to the present invention, intended for locating particular places, in particular recording areas on a medium for recording images, sounds or any other information, consists in generating pulses during the scrolling of the medium. recording, counting the pulses generated from a reference position of the recording medium up to each particular location to be identified, and storing in number of storage means independent of the recording medium the number of associated counted pulses at each particular place to locate.

 Another method according to the present invention is intended for finding particular places and in particular recording tracks on a recording medium for images, sounds or any other information and consists in generating pulses during the scrolling of the recording medium, and counting the pulses generated from a reference position of the recording medium and comparing the number of pulses thus counted with the number of pulses previously determined and associated with the particular location sought from the reference position of the recording medium.

 Another method according to the present invention is intended for locating and / or searching for particular places and in particular recording tracks on a recording medium for sounds, images or any other information and consists in generating pulses during the scrolling of the recording medium and, on the one hand in the acquisition phase of the marks, counting the pulses generated from a reference position of the recording medium to each particular place to be marked and to memorize in storage means independent of the recording medium the number of counted pulses associated with each particular location to be identified, and on the other hand in the search phase for any particular location of the recording medium, to count the pulses generated from said reference position and to compare the number of pulses thus counted with the number of pulses previously memorized and associated with the particular location rech erected.

 The present invention also relates to a device intended for implementing the method for locating particular places mentioned above and capable of being associated with an apparatus for recording and / or reading and / or scrolling of storage media. recording provided with drive means for scrolling the recording medium This device comprises a pulse generator provided with a member cooperating with the recording medium in order to supply pulses during the movement of the recording medium, a pulse counter for counting the pulses supplied by the pulse generator, storage means, and transfer means for transferring the state of said pulse counter into said storage means associated with each particular location of the support d recording to be located from a reference position of the recording medium.

 The present invention also relates to a device intended for implementing the method of searching for particular places mentioned above and capable of being associated with an apparatus for recording and / or reading and / or scrolling of storage media. recording device provided with drive means for scrolling the recording medium. This device comprises a pulse generator provided with a member cooperating with the recording medium in order to supply pulses during the movement of the recording medium , a pulse counter for counting the pulses supplied by the pulse generator, storage means in which is stored the number of pulses respectively associated with each particular location of the recording medium previously identified from a reference position of the latter, input means for choosing a particular location on the recording medium from the particular locations marked pre also, a comparator for comparing the state of the pulse counter from the reference position of the recording medium with the number of pulses stored in said storage means and associated with the particular location of the medium chosen recording medium, and control means for operating said drive means in order to scroll the recording medium to the particular location of the latter chosen.

 The present invention also relates to a device intended for implementing the method of locating and / or searching for particular places mentioned above and capable of being associated with a recording and / or reading apparatus and / or scrolling recording media provided with drive means for scrolling the recording medium. This device comprises a pulse generator provided with a member cooperating with the recording medium in order to supply pulses while the recording medium is scrolling, a pulse counter for counting the pulses supplied by said recording generator. pulses, storage means, transfer means for, on the acquisition face, transferring the state of said pulse counter into said storage means associated with each particular location of the recording medium to be located from a reference position of the recording medium, input means for choosing, during the research phase, a particular location of the recording medium from the particular locations previously identified in the acquisition phase, a comparator for, in the research phase , compare the state of the pulse counter from the reference position of the recording medium with the number of pulses previously stored in said means storage memorization in the acquisition phase and associated with the particular location of the chosen recording medium, and control means for operating said drive means in order to scroll the recording medium up to the 'particular place of the latter chosen.

 According to the present invention, the devices described above can advantageously include means for storing in said storing means codes associated respectively with the recording media of a group of recording media.

 According to the present invention, said storage means can advantageously include storage means which are independent per se and writing and / or reading means of storage means, these storage means being able to be carried by or associated with the recording medium. or its support.

The present invention will be better understood from the study of a device intended for locating and searching for particular places and in particular recording ranges, described by way of nonlimiting examples and illustrated by the drawing in which
- Figure I schematically shows a recording and playback device on a recording medium
- Figure 2 shows the electronic diagram of a tracking device associable with the device shown in Figure 1
and FIG. 3 represents an alternative embodiment of the device shown in FIG. 2,
There is shown diagrammatically in FIG. 1 an apparatus generally identified by the reference 1 and capable of scrolling a tape recording medium 2
This device 1 comprises two spool support axes 3 and 4 which are parallel and likely to be driven in rotation by motors 5 and 6 respectively. The recording medium 2 is wound on the one hand on the spool carried by the axis 3 and on the other hand on the reel carried by the axis 4 and extends between these lips by passing over idler rollers 7 and 8.

 The apparatus 1 can be a magnetic tape reader-recorder capable, in certain variants, of being carried by cassette cases.

 The apparatus 1 can also be an apparatus capable of scrolling through a recording medium 2 constituted by a film provided with perforations.

 In either case, the device I comprises means represented schematically and identified by the reference 9; these means being capable of running the recording media 2 between the return rollers 7 and 8 * In the case of a # reader-recorder of magnetic tapes, the means 9 are generally constituted by a rotating capstan and a pressure roller, in the case of a film scrolling device, the means 9 can be formed by a Maltese cross system.

 In FIG. 2, there is shown the electronic diagram of a device generally identified by the reference 10 and intended for locating particular places of the recording medium 2, this device 10 being capable of being associated with the device I shown in Figure 1.

 The electronic device 10 comprises a pulse generator 11 capable of supplying pulses linked to the movement of the recording medium 2. In the case of a magnetic tape, this pulse generator 11 can be associated, for example, with the one of the deflection rollers 7 and 8 for supplying pulses linked to the rotation of the roller and consequently linked to the movement of the recording medium 2. In the case of a recording medium 2 formed by a film, the generator of pulses it can be formed by a device such as an optical fork counting the perforations during the running of the film.

 The electronic device 10 also includes a counter 12 capable of counting the pulses supplied by the pulse generator II, a memory device 13 in which the state of the counter 12 can be stored, a comparator 14 capable of comparing the state of the counter 12 with any of the information recorded in the storage device 13 a keyboard 15, a display device 16, an electronic management and control unit 17 capable of managing the transfer of information between the counter 12, l storage member 13, the comparator 14, the keyboard 15 and the display member 16 and capable of controlling in particular the drive means 18 of the recording medium 2 mounted on the device 1 represented in FIG. 1 by l '' - - via an interface 19.

 We will now describe how the electronic device 10 works and can perhaps be used to locate and search for particular places on the recording medium 2.

 At the start of the acquisition phase of marks associated with particular locations of the recording medium 2, the latter is in a reference position. This reference position can correspond, in the case of a magnetic tape mounted in a cassette, to its starting position and, in the case of a film for example, to the position of the first image.

 In order to identify different particular places of the recording medium 2 relative to this reference position, the pulse generator 11 generates pulses during the movement of the recording medium 2 which are counted by the counter 12 and, thanks to a key on the keyboard 15, it is possible to store in the storage member 13, with a view to its conservation for later use, the state of the counter 12 for each of the particular places reached when the recording medium is scrolled, the desired transfers # s being carried out by means of the electronic management and control assembly 17. In addition to this recording in the memory member 13 of the state of the counter 12, it is recorded either automatically or manually, in this storage member 13, a particular serial number for each of the states of the counter 12 recorded.

 When it is desired to find or search for a particular location of the recording medium 2 previously identified, the serial number associated with this particular location is entered by the keyboard 15. The electronic assembly 17 controls the input means 18 via the interface 19 so as to place the recording medium 2 in its reference position mentioned above, performs a reset of the counter 12 and controls the drive means 18 so as to scroll the recording medium 2. The comparator 14 compares the state of the counter 12 with the number of pulses recorded in the storage member 13 and associated with the serial number entered by the keypad 15. When the state of the counter 12 corresponds to the number of pulses memorized, the particular place sought is reached. Of course, if one seeks later to return to this particular place or if one wishes to find another location previously identified, it is not necessary to return the recording medium to its reference position. These operations can be done by counting or counting pulses.

 The storage device 13 can be an integral part of the electronic device 10 and can then be formed by electronic memories. In this case, the same storage device 13 can be used to carry out markings on several recording media. For this, it suffices to introduce into this storage member, via the keyboard 15, a particular code or reference associated with each recording medium.

In other variants, the storage member 13 can be formed, as shown in FIG. 3, by a static storage medium independent in itself, a reading and / or writing system 21 of the support 20 and a transfer memory 22 connected to the electronic management and control assembly 17, this transfer memory 22 containing the information to be transferred to the storage medium 2Q and / or having to receive the information contained in the storage medium 20. The storage medium 20 can in this case be formed by a magnetic medium, an optical medium, a bar code medium, a particular storage medium 20 which can then be associated with each recording medium of a group of storage media recording. This support 20 could, in certain variants, be carried by or associated with the housing or with the cassette 22 containing the recording medium 2, the reading and / or writing system 21 being able in certain variants to increment in the
storage medium 20 during the introduction or extraction of
the cassette 23 of the apparatus 1.

The present invention obviously cannot be
considered to be limited to the examples described above. Many other variants, application and use are possible
without departing from the scope defined by the appended claims.

Claims (9)

 1. Method for locating particular places and in particular recording ranges on a recording medium of images, sounds or any other information, characterized in that it consists  generating pulses during the scrolling of the recording medium,  r counting the pulses generated from a reference position of the recording medium to each particular location to be identified,  - And to memorize in memorization means the number of counted pulses associated with each particular place to be identified  2. Process intended for the search for particular places and in particular recording ranges on a recording medium for images, sounds and any other information, characterized in that it consists  generating pulses while the recording medium is scrolling and  - counting the pulses generated from a reference position of the recording medium and comparing the number of pulses thus counted with the number of pulses previously determined and associated with the particular location sought from the position of record medium reference.  3. Method for locating and / or searching for particular places and in particular recording tracks on a recording medium for sounds, images or any other information, characterized in that it consists  - generating pulses during the scrolling of the recording medium and,  on the one hand in the phase of acquisition # ition of the benchmarks, counting the pulses generated from a reference position of the recording medium up to each particular location to be located and stored in the storage means number of pulses counted associated with each particular location to be identified,  - and on the other hand during the search phase of any particular place on the recording medium, counting the pulses generated from said reference position and comparing the number of pulses thus counted with the number of pulses previously stored and associated with the particular location sought.  - And transfer means for transferring the state of said pulse counter in said storage means associated with each particular location of the recording medium to be identified from a reference position of the recording medium.  - storage means,  - a pulse counter for counting the pulses supplied by the pulse generator,  a pulse generator provided with a member cooperating with the recording medium in order to supply pulses during the scrolling of the recording medium,  4. Device for implementing the method according to claim 1, and capable of being associated with a recording and / or reading and / or scrolling device for recording media provided with drive means for scroll the recording medium; characterized by the fact that it includes  5. Device intended for implementing the method according to claim 2, and capable of being associated with a recording and / or reading and / or scrolling device for recording media provided with drive means for scroll the recording medium, characterized in that it comprises  - a pulse generator provided with a member cooperating with the recording medium in order to supply pulses during the scrolling of the recording medium9  - a pulse counter for counting the pulses supplied by the pulse generator,  memorization means in which the numbers of pulses respectively associated with each particular location of the recording medium, previously identified from a reference position of the latter, are stored,  - input means for choosing a particular location on the recording medium from the particular locations previously identified,  - a comparator for comparing the state of the pulse counter from the reference position of the recording medium with the number of pulses stored in said storage means and associated with the particular location of the chosen recording medium ,  and control means for operating said drive means in order to scroll the recording medium to the particular location of the latter chosen.  6. Device intended for the implementation of the method according to claim 3, and likely other associated with an apparatus for recording and / or reading and / or scrolling of recording media provided with drive means for scrolling. the recording medium, characterized in that it comprises  a pulse generator provided with a member cooperating with the recording medium in order to supply pulses during the scrolling of the recording medium,  - a pulse counter for counting the pulses supplied by said pulse generator,  - storage means,  transfer means for, in the acquisition phase, transferring the state of said pulse counter into said storage means associated with each particular location of the recording medium to be located from a reference position of the support recording,  - input means for choosing, during the research phase, a particular location on the recording medium from the particular locations previously identified in the acquisition phase,  - a comparator for, in the research phase, comparing the state of the pulse counter from the reference arrangement of the recording medium with the number of memorized pulses.  - And control means for operating said drive means in order to scroll the recording medium to the particular location of the latter chosen.  laughed beforehand in said storage means during the acquisition phase and associated with the particular location of the chosen recording medium,  7. Device according to one of claims 4 to 6, characterized in that it further comprises means for storing in said means for storing associated codes respectively; to the recording media of a group of recording media.  8. Device according to any one of claims 4 to 7, characterized in that the said storage means comprise independent storage means and writing and / or reading means of the storage means  9. Device according to claim 8, characterized in that the storage means are carried by or associated with the recording medium or its support.