JPS5977651A - Video tape recorder - Google Patents

Abstract

PURPOSE:To prevent the increment of price related to display due to the increment of function and to improve functional capability operability by switching a voice signal and a picture signal at the change of operation of a VTR or at the setting of the recording start or end time, and by using a TV to be used together with the VTR as a pair. CONSTITUTION:An audio mixing circuit 9, audio output switching circuit 10, video mixing circuit 11, and a video output switching circuit 12, etc. are added to the output stages of an audio circuit 5 and a video circuit 6 for the oridinary VTR to switch or multiply the outputs of a voice signal generating device 14 and a picture signal generating device 16 and output the switched or multiplied result to the TV. Since a microcomputer in a system controlling circuit 8 has already stored the internal status of the VTR or the setting time of a timer in its internal RAM, it is easy to output these data to a voice storage device 13 and a character/pattern storage device 15 as an explanation language and the data for the specified address of the character/pattern.

Description

DETAILED DESCRIPTION OF THE INVENTION Field of Industrial Application The present invention relates to a bidet table refrigerator (hereinafter referred to as V'I'R
It is abbreviated as This application relates to a VTRK that has the functions of displaying the timer setting (f7tl), the TV signal receiving channel, the status of the VTR, etc., and explaining the operating method for changing the above status.

Conventional configuration and its problems In general, the entire system of V ``I' H is divided into a machine groove section (1) and an electronic circuit gA (2) as shown in Fig. 1. In addition, there is a tuner circuit (3) that selects TV channels and separates video and audio signals based on input from the antenna (5), and modulates the video signal from the tuner circuit (3) or externally. You can amplify and supply recording current to the video head (B), or amplify the video (i signal) demodulated from the playback signal from the video head (B) or the video signal from the tuner or external source to the television receiver (C ) (hereinafter referred to as 'F'TV)' (hereinafter referred to as 'F'TV)', the video circuit (6) and the tuner circuit (3) or external audio signals are amplified to supply signal current to the audio head (DJ), signal or audio head)
an audio circuit (5) that amplifies the reproduced audio signal from the TV (C) and outputs it to the TV (C); Servo and mechanical controls for recording and detecting roll signals to controller 1 via control head (E) and control head (E) in section (1), and erasing records on tape via full-width erase head (F). 1ql circuit (7) and a system control circuit (8) that centrally controls each of the m-child circuits.

System control circuit (81 operations LJ V T
Key power from Ri action key switch (G) and M t
Sensor power from f's part (1) and each other Kameko 1L-
It is determined by the state detection input from the IJh circuit, and based on the fi' 1j of each of the above-mentioned inputs, the other multiplex circuits are centrally controlled i1i'. In addition, currently V T
Find out what state R is in using F I PaD and L E
1. ) (Il nato is displayed for convenience.

V1'R's monthly functions include time setting of prosthetic hand and E4 motion recording using built-in timer VC, and % of tape counter.
, Time display, Tape remaining display, Tape start L, Sushu re-4
F1. There are special image processing, etc., and these functions tend to increase, but with conventional VTRs, V″I″
If you add 1 μm to the display of R's i person r tiger etc., T' I P
There came a point where aD and L E D (1) alone could no longer handle the 10,000 additional VCs.
As for the key switches (G), the number has increased in proportion to the increase in functions5, and from the viewpoint of operability, it is very difficult to sweep.
[There was a problem that it became sloppy.

Purpose of the Invention The present invention solves these conventional problems.
, and VT has traditionally been used as a method of display and operation explanation.
Since the TV used in combination with Vi'R is used, the purpose is to prevent increases in display costs due to increased functionality, and to provide Vi'R with multiple functions and excellent operability.

Structure of the Invention In order to achieve the above object, the VTR of the present invention incorporates a system control circuit and a random access memory (hereinafter referred to as RA) inside a microcomputer.
M), the input/output port, each storage device for 2 audio characters and 1 graphic, the signal generator for 2 famous characters and 1 graphic, and the audio signal and video ('l signal switching/multi]ton circuits. , V
T Ro) When the operation changes at 1 o'clock or when setting the recording start/end time (so-called timer recording time setting), etc., the audio and video signals currently being sent from the VTR are changed to the above sound %j. Switch to the audio signal from the signal generator and the image signal from the image signal generator, or
The second method is designed to output both in a superimposed manner to clarify the display and improve operability.

DESCRIPTION OF EMBODIMENTS An embodiment of the present invention will be described below with reference to the drawings. As shown in FIG. 2, the VTR of the present invention includes an audio second kissing circuit (9) and an s-teio output switching circuit 0 (high and high output switching circuits) in the output stages of the conventional audio circuit Klr (5) and video circuit (6). Same h'lG (+17
, Vite" output switching circuit (1 each, synchronization signal generation 1 ", l
0η is added, and switching or multiplexing is performed with the output of the audio signal generation value fF−f04) and the output of the image signal 1′ generator 1θ(shi), and T′V(ql to be output to C1 is enabled. Figure 8 shows the wave of each part /j'≦1 I
, (rl is the output of the audio circuit (5), (ql
is the output of the audio No. 4 generator 04), (θ) is the loss μm side output (rlto(ql) multi-multiply signal (1)) is the output of the audio signal A'
I'! l h゛;r (li) cD output, (pl is the output of the same R41 signal 07), (svl is the output of the image signal generator R4gt, (1) is the same signal ( p) and image Shingetsu (TVL's multi-tit news publication, (V) are the video signals (c + J and Gabinsho +'3 (wl) are each city signal, Ondo 1 storage device θ, 9 is the preset explanation The 4th imperial edict is 412 busy 1, and it is set as a tree at 41 Mourning Ia Station.
An Il read-only memory (hereinafter referred to as ROM) is used. The voice storage device ff'e da outputs explanatory language data according to the designated address to the voice signal generator f'e on the basis of the designated address data from the system control circuit (8). The voice signal generation device is mainly composed of a converter and an output amplifier. .

Character/figure memory device W1. C1 ri) stores characters and figures that have been set, and uses the above-mentioned ROM as a storage medium, similar to the voice storage device, i', io, and 'o. There is. The above character/figure storage device d09
is based on the specified number j1 data from the system control circuit (8) and follows the specified address above t=sentence'-6・ku+
tt; 1-Transfer the signal to the image signal generator OfV. Both statues 41st month 6th grade '1tjt (IQ is a letter,
It generates character/graphic image signals (W) based on the character/graphic data transferred from the graphic storage device type 0.
When multiplexing with the video output (u) of video circuit (6) and outputting the image to 'I' V (C1), it is necessary to synchronize with the video output (ul) of video circuit (6). Separate the synchronization signal (p) from the image signal generator [6θ())
A synchronization signal generating circuit (1, 7) is provided to supply the same.

Image signal generator 4g (image output of ν (m ke 11!l)
I' V (does not include pl.
When outputting to picture m1 of C), use video mixing link 1.
[j try, (Ill) and synthesize the same ItjI signal (
T) Image containing l (1), and 0, both bowls, and signal (
There is a video signal (output 1 as Vl) containing the video signal (w).
(V) is the display output of the video enclosure (I]) and the letter l)3. : 3 video 1+il l? In the video output (11) of each (6), if the set TV channel is not broadcasting or the output 11j (fl-
The tape (J, J4 of 2'1'd, video output (UL)
There is no same jtJ4 signal.

For this reason, the synchronization signal generation circuit θ is at the same level as the synchronous signal.
- Also, the same 1tIJ times the month will be generated 6 more times tomorrow, t
j2 upper 7jl-1 video output (when there is no synchronization signal in ul, image (7, moon generator 0QOiIIjI image signal (w
), it becomes impossible to display characters and figures because it does not include pl.
If there is no synchronization signal in the field, the gap is detected and the switching signal (n
), and a video/synchronization signal switching circuit (II) that switches the signal (Z+) from the video output (u) to the synchronization signal (pl) before multiplexing the characters/inside shapes. Therefore, in the above case, output (1) and output (vJ) are the same signal output that only displays characters and figures.

The system control circuit (
8). A microcomputer is often used for the system control circuit (8), but in that case, the signals that control the voice storage device Iio, the character/graphics 1# device 09, and the TV (C) K final It is essential to provide a boat that outputs switching signals for audio and video signals. In other words, if you specify with the key switch (Gl) whether the user's message is displayed or in what format, the microcomputer of the system control circuit (8) selects the voice storage device a.
Outputs the specified address data to the device ji Q~ with text and graphics 1, outputs each switching signal to the audio output switching circuit a (1) and the video output switching circuit 1 rra, and outputs each switching signal to the audio output switching circuit a (1) Generation of character/graphic signals and output switching are performed.

According to such a configuration, it is possible to freely display and explain the television receiver TV (C) which is the output medium side by side. In addition, since the system control circuit (g+'s microcomputer has already stored the internal status of the VTR, the timer setting time, etc. in the internal RAM), this information can be stored as explanatory language and specified address data for characters and figures. It is easy to output to the voice storage device k!Q:) and the character/graphic storage device f&, 051.

The explanatory text that is output as audio and the characters and graphics that are displayed are audio storage devices! vIθ: 90) ROM data and the ROM data of the character/figure storage device 09 can be freely created by the microcomputer program of the system control circuit (8). The IFQ output can be divided into several patterns and the current status and sequence of operations can be displayed in an easy-to-understand manner to the user using explanatory text and diagrams, so sweeping f<lV is difficult. It is possible to easily cope with the increase in the complexity of operations and the increase in the amount of displayed information due to the increase in the analysis power of VTRs.

Furthermore, a key switch (
Gl (7) In order to change the role of FJJ, the system controller), O-Jl/times tr8 (8) The increase in the number of operation key switches (G) due to the increase in functions can also be prevented. can. In cases such as the above, please use the voice and screen display to clearly indicate whether each key switch (G) is to be operated.
L good.

FIG. 4 shows an example of the arrangement of the key switch (G) in the VTR of the present invention, and FIG. 5 shows an example of the screen display. As an example in Fig. 4, 16 [(7) key switch (G) t is used for operating the VTR, and the key switch (G) is used for key scan input/output of the system control circuit (8). Detects whether it is pressed, and then (1 f: V
It controls the TR. Key switches (The display change key and display advance key are independent switches and are not shared with other operations. All key switches other than these two key switches are shared keys. do.

FIG. 5 (1a) shows the initial screen state when the VTR is turned on, and the display shows the current TV channel and the V"l"R mode.

Use the display changeover key to determine whether or not to display the display, and whether or not to overlap the screen being played by the VTR. (C) The Ill!
"CASSET" indicates that the cassette is not set.
There is no display. At this point, set the cassette in the VTR and press the playback key ([4, PLAY] in Figure 4), the VTR will enter playback mode, and the manual screen will be displayed ((4, PLAY) in Figure 5).
The screen shown in 1b) will appear. If the slow key (r 6,5LOWj in FIG. 4) is further pressed here, the slow playback mode is activated, and the display screen becomes as shown in (IC). Here, the key switch "11.→" in FIG. 4 accelerates the playback speed, 41 yen, rl of l, 2. The key switch -J serves as the operation switch for decelerating the playback speed.

On the display screen (1a,) (lb), V 1' Ri! The operation mode is now in operation mode, but at this point press the operation mode switch key (Fig. 4) r 1'V/VTR, I J) 'TV' is displayed at the bottom and the TV channel change mode is entered.

Channel settings are made using the key switch (11°EJ in Figure 4).
ECT J~r12. -J), and the set channel is displayed at the i51 position of CH12'' on the display screen (X8).
/VTR, iJ) Press VTR mode
FK back! 1. It is in a state where you can perform operations such as playback and recording.

When you press the display switching key on the display screen (la), both sides of the display will be displayed as the second display screen (2a), with H, setting the current time, and what to display on the first display screen (1a) to (IC). This mode enters a mode in which you can set settings such as whether to
If the user presses r4, PLAY J) in FIG. 4, the display screen returns to the first display screen (1a). In the example of FIG. 5, the tape counter is not displayed on the display 1tlIi planes (1a) to (1c) because it is set to display the numerical value of the tape counter.

If the display advance key is further pressed on the display screen (2a), the display screen becomes the eighth display screen (8a), and the mode for timer recording time setting is entered. To add recording time, use the cursor key (r'l'V/VTR, ↑ in Figure 4).

"10.iJ, r1.1.→J, r12.-J)
Move the Yoshika-Tsuru to the right end of the display screen (3a), set the day of the week and 2 times according to the switch number instructions on the display screen, and after setting, press the set key ("09STOP" in Figure 4).
, I ) will set the timer. To cancel, move the cursor using the cursor keys above, and press both sides of the display (
Move to the position of the day of the week at the top of 3a) and press the cancel key ("O, 5TOPJ" in Figure 4) to cancel the timer program in that part. On both sides of the display (8a), the time and day can be changed while checking the current timer program status, so operability is excellent and there are fewer mistakes in programming.

If the display key is further pressed on the eighth display screen, the display screen returns to the first display screen and the VTR becomes ready for operation.

Effect of the invention As described above, according to the present invention, the operation of the VTR is performed.

Settings such as timers can be made while looking at the television screen, and instructions for operations can also be provided by voice, which has the great effect of making it extremely easy to use for VTR users. Yes, its industrial value is great.

[Brief explanation of drawings]

Figure 1 shows the block diagram of a conventional VTR, Figure 2 shows the VTR of the present invention.
A block diagram of the output stage of the sound temple signal and video signal in one embodiment of the TR, FIG. 8 is a waveform diagram of each part of FIG. 2, and FIG. 4 is an operation key switch of the V 'I' H of the present invention. FIG. 5 is a diagram showing an example of screen display. (5)...Audio circuit, (6)...Video circuit, (8)...System control circuit, (9)...
・Audio mixing circuit, Qo...Audio output switching circuit, Ql)...Video mixing circuit, (2
)...Video output switching IiI circuit, 0...Audio storage device, σa...Audio signal generation unit, θ...Character/graphic storage device, oQ...Image signal generation device, a71.・
・Synchronization signal generation circuit, (18)...detection circuit,
...Video/synchronization signal switching circuit, (C)...Television receiver 4! Machine, (G)...Key switch agent Yoshihiro MorimotoFigure 3

Claims (1)

[Claims] 1. A storage device that stores explanatory language, characters, figures, etc. that explain how to operate a video tape recorder and its current state, and reads information from the storage device to generate specified audio. A sound signal generator and a designated voice signal generator, Figure J
When changing the operation of the video tape recorder or setting the recording start/stop time, etc., the audio signal and video signal currently being sent out from the video tape recorder are The above audio signal generator
i': A video tape recorder characterized in that it switches to an audio signal from i and an image signal from an image signal generator, or outputs both in a superimposed manner. 2. As part of the output explaining the operating method of the audio signal generator and the image signal generator, information regarding the operation of the key switch is output to the video tape recorder, and the role of the key switch is determined depending on the output state. 2. The video tape recorder according to claim 1, wherein the video tape recorder is changed so that multiple operations can be performed using a small number of key switches. 3. If there is no video signal before multiplexing with characters/figures, it is detected, automatically generates a synchronization signal, switches the video signal before multiplexing to the synchronization signal, multiplexes, and outputs the image. A video tape recorder according to claim 1, characterized in that the video tape recorder is configured to perform the following operations.