JP2000032376A - Video recording/reproducing device with destination switcher - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a VTR device usable at various destinations through simple operation for a user when used while changing a destination area. SOLUTION: When using a VTR device 5 used in a destination area A in a destination area B the user just switches a changeover switch 1 so that the power source of the destination area B is set by a voltage/frequency converting circuit 13b, the broadcasting signal of the destination area B is received and tuned by a tuner 10b, recording on a tape 6 is performed by the signal processing of a recording system signal through the broadcasting system of the destination area B in a recording system signal processing circuit 11b, reproducing is performed through the signal processing of a reproducing system signal by a reproducing system signal processing circuit 12b, the reservation code of the broadcasting signal in the destination area B is selectively set the VTR device can be automatically operated in the destination area B, it is not necessary to produce and manage a machine type for each of all the destination areas, production costs are reduced and product management can be simplified.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a video recording / reproducing apparatus with a destination switch for selecting and switching a destination area.

[0002]

2. Description of the Related Art As a color television system, an NTSC system with a subcarrier frequency of 3.58 MHz, which is proposed in the United States and standardized in the United States and Japan, is proposed in France, and a subcarrier frequency of 4 is proposed. There is a SECAM system which is .48 MHz and is standard in some parts of Europe, the Middle East and Asia. Meanwhile, PA proposed in Germany
The L system includes a PAL-B / G system which has a subcarrier frequency of 4.43 MHz and is a standard system in Western Europe, and a PAL system which has a subcarrier frequency of 3.575 MHz and is a standard system in Argentina, Uruguay and the like. -N method,
There is a PAL-M system which has a subcarrier of 3.582 MHz and is a standard system in Brazil. In addition, since the operating frequency and operating voltage may differ depending on the country, when manufacturing and exporting video tape recorders (hereinafter referred to as VTRs), the color television system, operating frequency, operating It is necessary to manufacture a VTR device that includes a tuner, a recording-system signal processing circuit, a reproduction-system signal processing circuit, and a display control unit that supports a voltage.

[0003]

[Problems to be Solved by the Invention] If the specifications of the VTR device are manufactured by limiting to the destination area, there are many kinds of models,
The destination of each model is limited, the development of the product in the market is restricted, and the management of the product becomes complicated. And when the product is used in the adjacent area, even if there is a part common to the color television system, the product can be used only in one area, and when used in another area, It was necessary to replace the components and circuits, or switch and use the switches inside the apparatus, with the trouble of the service technician.

The present invention relates to a VTR of this kind as described above.
The purpose of the present invention is to provide a video recording / reproducing apparatus which can be used in different destinations by a simple operation by a user when the apparatus is used after changing the destination area. Is to provide.

[0005]

In order to achieve the above object, the invention according to claim 1 is provided with a switching display section, and a switching device for selecting and switching a destination area, and a switching device for switching the destination region. A video recording / reproducing apparatus with a destination switch having a control unit for performing switching control of a video recording / reproducing operation based on an output area selection signal, and a tuner for receiving and selecting a broadcast signal of a selected destination area. Receiving condition setting means for selecting and setting the receiving condition, and a recording signal processing circuit for executing the signal processing of the recording signal corresponding to the broadcasting system of the selected destination area. Recording system signal processing circuit setting means for causing the circuit to record the broadcast signal on a recording medium; and recording system signal processing circuits selected and set by the recording system processing circuit setting means, thereby recording on the recording medium. A reproduction system signal processing circuit for reading out the recorded signal, selecting and setting a reproduction system signal processing circuit for performing signal processing of the reproduction system signal, and causing the reproduction system signal processing circuit to reproduce the broadcast signal; Display control means for controlling the display of information on the monitor by selecting the on-screen display system, the type of display menu, and the language used in the selected destination area, and selecting the reservation code of the broadcast signal in the selected destination area The control unit is provided with a reservation code setting means for setting and a monitoring means for monitoring a switching state of the switching unit at predetermined time intervals.

[0008] Similarly, in order to achieve the above object, the invention according to claim 2 is provided with a switching display section, and a switch for selecting and switching a destination area, and an area output by switching of the switch. A VTR device with a destination switch having a control unit for switching the operation of a VTR based on a selection signal, wherein a reception condition for selectively setting a reception condition of a tuner for receiving and selecting a broadcast signal in a selected destination area. Setting means for selecting and setting a recording signal processing circuit that executes signal processing of a recording signal in accordance with a broadcasting system of the selected destination area, and the recording signal processing circuit sends the broadcast signal to a tape by the recording signal processing circuit. A recording signal processing circuit setting means for performing recording, and a recording signal processing circuit selected and set by the recording system processing circuit setting means read a recording signal recorded on the tape, and read a recording signal. Signal processing circuit setting means for selecting and setting a reproduction signal processing circuit for executing signal processing of a signal, and causing the reproduction signal processing circuit to reproduce the broadcast signal; and an on-screen display system for a selected destination area. Display control means for selecting the type of display menu and language to be used to control the display of information on the monitor, reservation code setting means for selecting and setting a reservation code of a broadcast signal in the selected destination area, At time intervals, monitoring means for monitoring the switching state of the switch and the reception condition setting means,
The recording unit signal processing circuit setting unit, the reproduction system signal processing circuit setting unit, the display control unit, and a display control unit that controls display on the monitor of the setting contents of the reservation code setting unit are included in the control unit. It is characterized by being provided.

[0007]

DESCRIPTION OF THE PREFERRED EMBODIMENTS One embodiment of the present invention will be described below with reference to FIGS. FIG. 1 is a block diagram showing the configuration of the present embodiment, FIG. 2 is an explanatory diagram showing the configuration of the changeover switch of the present embodiment, and FIG. 3 is a flowchart showing the operation of the present embodiment.

In this embodiment, the video recording / reproducing device is a VTR device 5, and this VTR device 5 can be switched between a destination area A and a destination area B. As shown in FIG. A switch 1 provided with a switching display 1ba of the area A and a switching display 1bb of the destination area B is attached to the back of the case of the VTR 5 so as not to be erroneously operated, and this switching switch 1 is shown in FIG. As described above, the microcomputer 3 is connected to the microcomputer 2 that controls the entire operation. The microcomputer 2 is connected to the ROM 3 that stores the operation data of the VTR device 5 in the destination area A and the destination area B. This R
OM3 stores tuner channel plan data, broadcast system data, on-screen display data, display menu data, language data, and reservation code data for each of destination areas A and B.

A control unit 5a of the VTR device 5 is connected to the microcomputer 2 via a bus B. The control unit 5a receives an input driven by a receiving circuit control signal F1 from the microcomputer 2. Side switch 1
4a, tuners 10a and 10b that are switched and connected by an output-side switch 14b are provided, and a common terminal of the output-side switch 14b is driven by switches 15a and 15 driven by a recording circuit control signal F2 from the microcomputer 2.
b is connected to the common terminal of the switch 15a on the input side. Further, between the input side switch 15a and the output side switch 15b, there are provided recording system signal processing circuits 11a and 11b.
The common terminal of the output side switch 15b is connected to an input terminal of a magnetic head (not shown) that records a video signal on the tape 6 during a recording operation.

On the other hand, the output terminal of the magnetic head for reproducing the video signal from the tape 6 during the reproduction operation is connected to the switch 16a on the input side of the switches 16a and 16b driven by the reproduction system circuit control signal F3 from the microcomputer 2. A common terminal is connected, and between the input-side switch 16a and the output-side switch 16b, there are provided reproduction-system signal processing circuits 12a and 12b.
The switch 16b on the output side has a common terminal connected to the monitor 7 on which the image of the broadcast signal is displayed. The voltage / frequency conversion circuits 13a and 13b are switchably connected to the switch 17 driven by the power control signal F4 from the microcomputer 2, and the voltage / frequency conversion circuit connected to the switch 17 Each part is configured to be supplied with electric power.

In this embodiment, in the above configuration,
The microcomputer 2 includes monitoring means for monitoring the switching state of the changeover switch 1 at predetermined time intervals, and based on a monitoring signal from the monitoring means, tuner channel plan data, broadcast system data, and ON data of the destination area switched and set from the ROM 3. Screen display data, display menu data, language data and reservation code data are searched, and based on the searched data, a receiving circuit control signal F1, a recording system circuit control signal F2, a reproduction system circuit control signal F3, and a power control signal F4.
Is provided.

In this embodiment, the tuner 10a
Is configured to receive a broadcast signal in the destination area A and select and set a channel, and the tuner 10b is configured to receive a broadcast signal in the destination area B and select and set a channel. Further, the recording-system signal processing circuit 11a can execute signal processing of a recording-system signal in accordance with the broadcasting system of the destination area A, and the recording-system signal processing circuit 11b can cope with the broadcasting system of the destination area B. The reproduction-system signal processing circuit 12a is configured to be capable of executing the signal processing of the recording-system signal, and the reproduction-system signal processing circuit 12a is configured to execute the signal processing of the reproduction-system signal in accordance with the broadcasting system of the destination area A. 12b is destination area B
In order to cope with the broadcasting method, the signal processing of the reproduction system signal is executable. The voltage / frequency conversion circuit 13a is capable of supplying a power signal of the voltage and frequency of the destination area A, and the voltage / frequency conversion circuit 13b is capable of processing the signal of the reproduction system signal in accordance with the broadcasting system of the destination area B. Are configured to be executable.

The operation of the present embodiment having such a configuration is described below.
This will be described with reference to the flowchart of FIG.

For example, the destination area A is South America 1 (Brazil)
So, destination region B is South America 2 (Argentina, Uruguay,
Paraguay), the user is V
When the TD device 5 has been used, the switching unit 1a of the changeover switch 1 shown in FIG. 2 has been switched to the destination display 1ba indicating the destination area A, but the user moves to Paragwai and When the VTR 5 is used, the switching section 1a of the changeover switch 1 is switched to the destination display 1bb indicating the destination area B by the user (step S).
1).

The monitoring means of the microcomputer 2 monitors the switching state of the changeover switch 1 at predetermined time intervals. When detecting that the changeover switch 1 has been switched to the destination area B, the control signal output of the microcomputer 2 is output. ON by means
Is stopped (step S2), and R
From OM3, tuner channel plan data, broadcast system data, on-screen display data, display menu data, language data and reservation code data of destination area B are searched (step S3).

Then, the switches 14a, 14a, 1
The receiving circuit control signal F1 is input to 4b, and the switches 14a and 14b switch and select the tuner 10b instead of the tuner 10a according to the receiving circuit control signal F1. Similarly, the switches 15a, 15
The recording circuit control signal F2 is input to b, and according to the recording circuit control signal F2, the switches 15a and 15b switch and select the recording signal processing circuit 11b instead of the recording signal processing circuit 11a. Similarly, the reproduction system circuit control signal F3 is input from the microcomputer 2 to the switches 16a and 16b, and the switches 16a and 16b cause the reproduction system signal processing circuit 12a to replace the reproduction system signal processing circuit 12a with the reproduction system circuit control signal F3. The processing circuit 12b is switched and selected.
Then, the microcomputer 2 sends a power control signal F to the switch 17.
4, the switch 17 switches and selects the power supply / frequency conversion circuit 13b instead of the voltage / frequency conversion circuit 13a by the power supply control signal F4.

In this state, the voltage / frequency conversion circuit 13b
From, the power source signal of frequency 50Hz of South America 2 (Argentina, Uruguay, Paraguay) which is the destination area B,
The VTR device 5 is supplied to each part of the VTR device 5 and enters a normal operation state. The tuner 10b receives the broadcast signal of the PAL-N system in the destination area B, converts the broadcast signal into an intermediate frequency by local oscillation and mixing processing required for tuning, and outputs the intermediate frequency output from the tuner 10b. The signal is input to the recording signal processing circuit 11b.

In the recording signal processing circuit 11b, signal processing corresponding to the PAL-N system in the destination area B is performed.
The IF signal is subjected to band limiting processing by the F filter, video detection is performed by video intermediate frequency processing, and a composite video signal is obtained. The obtained composite video signal is divided into a chrominance signal component, a luminance signal component, and a luminance signal component. Is separated into The separated color signal components include ACC control in which the amplitude of the color signal is controlled so that the amplitude of the burst signal in the color signal is constant. The color amplitude is adjusted to adjust the color density on the screen. Color control to change, APC detection to create continuous color reference signal from burst signal, Killer detection to completely eliminate demodulation output when color signal disappears, Tint control to change color phase of demodulated signal, I axis And a Q-axis are subjected to color demodulation processing for performing color demodulation. On the other hand, the separated luminance signal components are subjected to a pedestal clamp process for keeping the voltage black level constant during a pedestal period (horizontal blanking period).
In addition, contrast control and bright control are performed. Then, the color signal component and the luminance signal component that have been subjected to the signal processing as described above are multiplexed and added, amplified by a recording amplifier, and supplied to a magnetic head to record a video signal on a tape 6.

At the time of reproduction by the VTR device 5, a reproduction signal output from the magnetic head is input to the reproduction system signal processing circuit 12b, where signal processing corresponding to the PAL-N system of the destination area B is performed. The reproduction signal is separated into a color signal component and a luminance signal component by the filter circuit.
The color signal component is controlled by the ACC so that the burst signal amplitude is constant so that the burst signal amplitude is constant. The frequency conversion of the color signal component subjected to the color level control and the frequency by the VCO are performed. By the control, a color signal is obtained. Further, the frequency characteristics of the luminance signal component are compensated for by an equalizer amplifier, and then subjected to FM demodulation, followed by de-emphasis processing to obtain a luminance signal. Then, the chrominance signal and the luminance signal thus obtained are multiplexed and added, amplified by an output amplifier, supplied to the monitor 7, and displayed on the monitor 7.

In this case, the display control means of the microcomputer 2 selects the on-screen display system, the type of display menu, and the language used for the selected destination area B, and controls the display of information on the monitor 7. When the information is displayed on the monitor 7, the information is displayed according to the display menu and the language used in the destination area B by the on-screen display method of the destination area B. Further, the reservation code in the selected destination area B is selected and set by the reservation code setting means of the microcomputer 2, and the broadcast program is reserved. The display control means of the microcomputer 2 determines which of the tuners 10a and 10b has been selected and set, and determines whether or not the recording system signal processing circuit 11a,
The monitor 7 displays information as to which of 11b has been selected and set, which of the reproduction system signal processing circuits 12a and 12b has been selected and set, and which of the voltage / frequency conversion circuits 13a and 13b has been selected and set. The VTR device 5 performs recording and playback while confirming the change of the destination area on the monitor 7.

As described above, according to the present embodiment, the user switches the changeover section 1a of the changeover switch 1 so as to be positioned at the intended destination display, so that the user can change the destination in different destination areas. The channel selection is performed by a tuner that receives and selects a local TV broadcast signal, and the recording system signal processing circuit that performs signal processing corresponding to the broadcast system in the destination area performs signal processing of the recording system signal to perform tape processing. 6 is recorded, and the reproduction signal from the tape 6 is subjected to signal processing by a reproduction signal processing circuit that performs signal processing corresponding to the broadcasting system in the destination area. With a simple operation that does not bother the user, the VTR device 5 enables recording and playback in different destination areas, Or destination area adjacent the structure, by the common to those many common components,
Manufacturing costs can be reduced, and product management can be simplified. In this case, due to the recent increase in the memory capacity of the microcomputer and the miniaturization of the tuner, the recording system signal processing circuit, the reproduction system signal processing circuit, and the voltage / frequency conversion circuit,
It is possible to reduce the size of the entire device.

[0022]

According to the first aspect of the present invention, when the user performs selection switching of the destination area using the switch, the switch is displayed on the display unit provided in the switch, and the area selection output from the switch is provided. Based on the signal, the control unit controls the switching of the video recording / reproducing operation so as to adapt to the selected destination area. The monitoring means monitors the output of the area selection signal at a predetermined time interval, so that the switching unit is switched. Is confirmed, the reception condition setting means selects and sets the reception condition of the tuner so as to receive and select the broadcast signal of the selected destination area, and the recording condition is set by the recording signal processing circuit setting means. A recording signal processing circuit that executes signal processing of a recording signal is selected and set according to the broadcasting system of the destination area, and the broadcast signal is recorded on a recording medium, and a reproduction signal processing circuit is set up. The reproduction system signal processing circuit is selectively set by the setting unit, and the reproduction of the broadcast signal from the recording medium and the signal processing of the reproduction signal are performed.
The on-screen display system of the selected destination area, the type of display menu and the language used are selected, the display of information on the monitor is controlled, and the reservation code setting means sets the reservation code of the broadcast signal of the selected destination area. Is selected and set. For this reason, according to the present embodiment, when the video recording / reproducing device is used in a different destination area, the user simply switches the switch, and the broadcast signal is received by the tuner of the receiving condition for receiving the broadcast signal in the destination area. A signal is received and selected, and recording is performed by a recording system signal processing circuit that performs recording system signal processing and reproduction is performed by a reproduction system signal processing circuit that performs reproduction system signal processing in the broadcast system of the destination area. Is displayed, the reservation code of the broadcast signal in the destination area is selected and set, and the operation of the video recording / reproducing apparatus in the selected destination area is automatically enabled. This eliminates the need to manufacture and manage models for each destination area, thereby reducing manufacturing costs and simplifying product management.

According to the second aspect of the present invention, in addition to the effects obtained by the first aspect of the present invention, the display control means allows the receiving condition setting means, the recording system signal processing circuit setting means,
Since the setting contents of the reproduction system signal processing circuit setting means, the display control means and the reservation code setting means are displayed on the monitor,
The user checks the operation status in different destination areas,
VTR can be used.

[Brief description of the drawings]

FIG. 1 is a block diagram showing a configuration of an embodiment of the present invention.

FIG. 2 is an explanatory diagram showing a configuration of a changeover switch of the embodiment.

FIG. 3 is a flowchart showing an operation of the embodiment.

[Explanation of symbols]

DESCRIPTION OF SYMBOLS 1 ... Changeover switch, 1a ... Switching part, 1ba, 1bb ... Destination display, 2 ... Microcomputer, 3 ... ROM, 5 ... VTR device, 6 ... Tape, 7 ... Monitor, 10a, 10b ... Tuner, 11a, 11b ... Recording System signal processing circuit, 12a, 1
2b: reproduction system signal processing circuit, 13a, 13b: voltage / frequency conversion circuit, 14a, 14b, 15a, 15b, 16
a, 16b, 17 ... Switch.

 ──────────────────────────────────────────────────続 き Continued on the front page F term (reference) 5C018 HA05 HA08 HA10 HA12 5C053 FA21 KA08 KA24 LA07 5C055 AA01 CA03 CA04 DA01 DA02 DA03 DA04 EA01 EA02 EA03 JA00 5D101 AC01 CC20

Claims (2)

[Claims] 1. A switching device comprising a switching display unit for selecting and switching a destination area, and a control for switching a video recording / reproducing operation based on an area selection signal output by switching the switching area. A receiving condition setting means for selectively setting a receiving condition of a tuner for receiving and selecting a broadcast signal in a selected destination area, and a broadcast in the selected destination area. A recording system signal processing circuit for selectively setting a recording system signal processing circuit that executes signal processing of a recording system signal in accordance with the system, and causing the recording system signal processing circuit to record the broadcast signal on a recording medium. Means for reading a recording signal recorded on the recording medium by a recording system signal processing circuit selected and set by the recording system processing circuit setting means, and executing signal processing of a reproduction system signal A reproduction signal processing circuit setting means for selectively setting a signal processing circuit and causing the reproduction signal processing circuit to reproduce the broadcast signal; an on-screen display method, a type of display menu, and use of the selected destination area Display control means for controlling the display of information on a monitor by selecting a language; reservation code setting means for selecting and setting a reservation code of a broadcast signal in the selected destination area; A video recording / reproducing apparatus with a destination switch, wherein a monitoring means for monitoring a switching state is provided in the control unit. 2. A switching device comprising a switching display unit for selecting and switching a destination area, and a control for switching a video recording / reproducing operation based on an area selection signal output by switching the switching area. A receiving condition setting means for selectively setting a receiving condition of a tuner for receiving and selecting a broadcast signal in a selected destination area, and a broadcast in the selected destination area. A recording system signal processing circuit for selectively setting a recording system signal processing circuit that executes signal processing of a recording system signal in accordance with the system, and causing the recording system signal processing circuit to record the broadcast signal on a recording medium. Means for reading a recording signal recorded on the recording medium by a recording system signal processing circuit selected and set by the recording system processing circuit setting means, and executing signal processing of a reproduction system signal A reproduction signal processing circuit setting means for selecting and setting a signal processing circuit and causing the reproduction signal processing circuit to reproduce the broadcast signal; an on-screen display system, a type of display menu, and a language used in the selected destination area Display control means for controlling the display of information on the monitor by selecting the information; reservation code setting means for selecting and setting the reservation code of the broadcast signal of the selected destination area; switching of the switch at predetermined time intervals Monitoring means for monitoring the state and the reception condition setting means, the recording system signal processing circuit setting means, the reproduction system signal processing circuit setting means, the display control means and the reservation code setting means, A video recording / reproducing device with a destination switch, wherein a display control means for controlling display is provided in the control unit.