RU54244U1 - DEVICE FOR RECEIVING AND TRANSMITTING TO THE MAGNETIC HEAD OF THE TWO-CHANNEL SIGNALS OF A LOW-FREQUENCY CASSETTE MAGNETOPHONE FROM EXTERNAL AND INTERNAL SIGNAL SOURCES - Google Patents

Abstract

Currently, television is moving to a new standard for stereo broadcasting, but not all television receivers are equipped with two-channel audio signals. This problem can be easily solved with a stereo tape recorder and the device proposed in this application. This device can be tuned to the frequency of a specific TV channel, as well as to many channels. In addition, a broadcast receiver can be integrated into this unit. This application does not address issues of additional input devices for external signals and channel switching. Therefore, there is an opinion that the control buttons, like the input jack, can be installed on the remote panel and removed using a flat wire to the surface of the cassette receiver cover by fixing it to the surface with suction cups or with an adhesive layer applied on the back of the remote panel (Figure 2). As a rule, for cassette receivers, the covers are made of transparent plastic, so it makes sense to make a model with IR control. Further, it makes sense to create a model with IR inputs, however, all improvements will lead to an increase in the cost of such a device. In the modern development of technology, there is a tendency to increase channels in various audio devices, such as home theaters using DVDs, computers, MIDI instruments. With the help of this device, the task of increasing the number of channels at low cost is easily solved. The cost of tape recorders is constantly decreasing and using the described device the number of channels easily increases to the required number.

Description

A device for receiving and transmitting to the magnetic head of a cassette recorder two-channel low-frequency signals from external and internal signal sources.

1. Field of technology.

The device can be used in the field of radio engineering to receive stereo television and FM reception programs on a conventional two-channel cassette recorder.

2. The prior art.

This device differs from the tape recorder in that the magnetic head used in this device is a transmitting link and is not intended for reading signals from a magnetic tape. According to the information available from the prior art of the device, the cassettes enclosed in the casing are used as adapters for the transition from one video cassette standard to another video cassette standard. In this case, these devices are not analogous to the device proposed in the application. Known patent RU 2047913, which describes a device in the form of a compact cassette designed for monophonic sound reproduction. However, the design of the inductor-emitter makes it impossible to reproduce the sound in two channels even if two emitters are used, since both signals will be induced on each of the cores of the two-channel recorder head, unlike this device, where the cores of the standard magnetic head of the recorder are deliberately closed in exact accordance with the cores standard magnetic head device.

3. Disclosure of a utility model.

To receive multichannel sound TV programs, you need a receiver equipped with a device that accepts these programs, but outdated TV receivers are equipped with only a single-channel audio frequency receiver. To solve this problem, it is proposed to use the device proposed in this application, which allows using the standard two-channel cassette tape recorder to receive and play on the magnetic head a two-channel audio signal from a TV program. To do this, the device is equipped with an RF receiver of the TV signal with division into side bands. In addition, this unit with a cassette recorder can be used as an amplifier for an audio two-channel or stereo signal from various audio and video systems. When using systems with a large number of channels, it is easy to turn on additional systems using these devices with a cassette recorder.

4. A brief description of the drawings.

The device for receiving and transmitting to the magnetic head of a cassette recorder two-channel low-frequency signals from external and internal signal sources is shown in FIG. 1, consists of a housing 6, low-frequency amplifiers 1, a magnetic transmitting device 2, a radio receiving device 3, amplifying the magnetic field of magnet 4, and an independent galvanic power devices 5. The magnetic head of the tape recorder 7 is also shown here.

5 Implementation of a utility model.

1. The device for receiving and transmitting to the magnetic head of a cassette recorder two-channel low-frequency signals from external and internal signal sources consists of a housing 6, low-frequency amplifiers 1, a magnetic transmitting device 2, a radio receiving device 3, amplifying the magnetic field of a magnet 4, and an independent galvanic power device 5 .

2. The cassette with the device is inserted into the cassette receiver of the cassette recorder, which is included in the "playback" mode. Reception of radio programs is carried out by a high-frequency receiver 3 tuned to a certain radio frequency of a TV program or FM station. The low-frequency signal from the output of the device 3 is fed to an intermediate amplifier 1 and then fed through the circuit to the magnetic head 2 of the device. Next, the signal is removed by the magnetic head 7 of the cassette recorder.

3. Reception from external devices is carried out by applying a low-frequency signal directly to the intermediate amplifiers 1 and then according to the scheme similar to that described in clause 2.

Claims (1)

The device for receiving and transmitting to the magnetic head of a cassette recorder two-channel low-frequency signals from external and internal sources of signals consists of a housing in the form of a compact cassette, a high-frequency receiver of phase or frequency modulation of two-channel reception transmitting low-frequency signals to two intermediate low-frequency amplifiers, which have additionally independent inputs for input external low-frequency signals, and further along the chain of a two-channel magnetic head transmitting signals to the magnetic head e cassette player in playback mode.