SU775759A1 - Device for analysis of information being recorded - Google Patents

Description

The invention relates to the field of instrumentation, namely to the information recording apparatus, and can be used to control the recording. A device for controlling the quality of a magnetic recording is known, in which the serialized binary information is recorded together with gating pulses on a magnetic tape, and it is also temporarily recorded in the operational memory. The recorded information is checked by comparing it with the contents of the memory, which is controlled by the gating pulses read from the tape. If the information being compared is anoshogichic, then in the comparison circuit an impulse is generated which sets an error trigger to one. Otherwise, alarm 1 is turned on. This device allows automatic detection of glitches that occur during recording. However, it lacks the ability to visualize the recorded information. A device for multi-channel visual monitoring of constant voltage sources is known by displaying several electrical parameters on an CRT screen of an oscilloscope 2j. This device solves the problem of visual control of parameters; however, it cannot be used in magnetic recording control devices. The closest in technical essence to the invention is a device for displaying information containing information recording and reproducing units, amplifiers, a video monitoring unit consisting of an image coordinate determining unit, a switching unit, a synchronization unit. Such a device allows visualizing information recording, but does not allow When analyzing a record, reduce its volume (redundant information). The purpose of the invention is to reduce media consumption by reducing the redundancy of information recorded on a magnetic tape by creating a new filtered record. This goal is achieved by inserting a recording duplication unit and a control unit into the device for analyzing the recorded information. records The drawing shows a functional diagram of the device for analyzing the recorded information.

The device contains playback units 1 and information recording 2, playback amplifiers 3 and recording 4, video control block 5, recording duplication block 6 and control block 7. The output of the device is an information recording unit.

In the mode of generating new filtered information, the signals from the playback unit 1 are fed to the input of the playback amplifier 3. From the output of the amplifier 3, bit and service pulses (including the time code) are synchronized with the reference frequency simultaneously sent to the inputs of the video camera 5 and recording duplication 6 blocks. in accordance with the channel separation system, the conversion of code information to analog and the formation of a continuous image of the recording process in the CR1, the scanned area of the CRT screen. The recording duplication unit 6 provides the formation of the amplitude and duration of the E1LOV signal received from the reproduction amplifier 3 at the time of the signal from the control unit 7.

The operator, watching the process on the screen of the video control unit 5, analyzes the usefulness of information recorded on a magnetic tape. At the right time, the operator gives the command Write to the input of block 6 duplication of the record. As a result, the information recording unit 2 is turned on and the signals from the output of the playback amplifier 3 through the recording duplication unit b and the recording amplifier 4 are input without changing the coding system Nftii to the input of the information recording unit 2.

When a command to stop recording is received at the control input of the Duplicate Recording Unit, the process of forming the filtered recording is terminated.

Thus, only those parts of the initial information that are of most interest to the experimenter are finally recorded on a magnetic tape. In this case, the recording plots remain attached to the through experiment, since the time code is also written on the magnetic tape.

The proposed device compares favorably with those known in that

5, the recording of information can filter out redundant information. And this leads to a significant reduction in computer time when processing the results of an experiment on a computer, reducing the consumption of the carrier. The simplicity of the device design, its small dimensions make it possible to use the device in onboard systems.

Claims (3)

5 claims A device for analyzing the recorded information, comprising information recording and reproducing blocks, recording and reproducing amplifiers connected to them, and a video control unit connected to the output of the reproduction amplifier, characterized in that, in order to reduce the consumption of information carrier, a duplicate recording 5 a control unit, the control unit being connected between the video control unit and the control input of the recording duplication unit, the information input of which is connected to the output of the amplifier 0, and the output is at the input of the recording amplifier. Sources of information taken into account in the examination 1, Patent of Great Britain 1408818, cl. G 5 R, publ. 1975.  2. USSR author's certificate 437020, cl. G 01 R 13/28, 1974. 3. USSR author's certificate 551671, cl. G 06 K 15/20, 1975 (prototype).