JPS59228637A - Remote control system of camera - Google Patents

Abstract

PURPOSE:To reduce the frequency of the use of a signal transmitting circuit for camera operation output at a terminal equipment by providing the terminal equipment with only one signal transmitting circuit for camera operation output and allowing the signal transmitting circuit for camera operation input of a master equipment to match with that of the terminal equipment. CONSTITUTION:The signal transmitting circuit 1b1 for camera operation output of the terminal equipment includes an on and an off function for a wiper and a defroster. The wiper defroster signal transmitting circuit b2 of the master equipment and signal transmitting circuits 1b' and 1b1 for camera operation output of the terminal equipment 5 have the same address, and the signal transmitting circuit 1b1 for camera position operation input of the master equipment normally has a different address. The key input of the wiper defroster signal transmitting circuit 1b2 of the master equipment is an input to OFF key. Further, the signal transmitting circuit 1b1 for camera operation input such as ''Far'', ''Near''- inputs the output of an OR gate 15 to an address for a change once an ''H'' input is supplied to an UP key, and have the same address with the signal transmitting circuit 1b1 for camera operation.

Description

[Detailed Description of the Invention] [Technical Field] The present invention provides a system for transmitting data by transmitting a control signal from a base device to a terminal device and receiving the control signal from the terminal device at the base device. This relates to a system in which a television camera connected to a terminal device is controlled by remote control from a parent device.

[Background technology]

The signal transmission circuit used in the present invention generally superimposes information consisting of four bits on a control signal line and transmits it to other signal transmission circuits, and also controls information transmitted from other signal transmission circuits in a similar manner. It has the function of receiving a signal and outputting a 4 and a read signal on the control signal. Specifically, as shown in FIG. 1, the signal transfer circuit
The i+ transmits the 4-pit signal on the control signal to the control signal line (3) via the 7-pin (2), and the e''4-pin (21
The 4-pit signal on the control signal received by the other signal transmission circuit (l) is outputted from the output ports 0UTl-OUT4 via '.

The signal control format of the signal transmission circuit fllJl+ consists of 34 pits as shown in Figure 2, and the 7-bit signal carries a 4-hit signal indicating which key input is received, and the house code "H", "L", and unit code. is a signal transmission circuit m,
+++' address, control] - signal transmission circuit (11J
The 4-pit signals input to the input ports INI to IN4 of 1r are respectively applied. and signal transmission circuits m, nl'
transmits this signal twice in succession.

Next, in general, camera remote control systems are
It is configured as shown in Figure 3, and includes multiple terminal devices (5) that control the camera (4), and one master device (5) that sends signals to control the camera (4) to the terminal device (5). 6). Between the base unit (6) and the terminal unit (6), there are two control signal lines (3) for signal transmission and a video signal from the camera (4) connected to the terminal unit (5) to the base unit. A coaxial cable (8) for TV signals to be sent to (6) 7-niter TV +7) is wired. The base unit (6) has multiple signal transmission circuits (1), and the camera (
4) Signal transmission circuit for camera selection input for channel selection (1a
), a signal transmission circuit (1b) for camera operation input, a signal transmission circuit (IC) for control input, etc. are included in the base unit (6). The terminal (5) includes a signal transmission circuit (la)' for camera selection output and a signal transmission circuit (lb) for camera operation output.
)', and a signal transmission circuit (s) that includes three types of signal transmission circuits (ICs) for control output.

Now, the signal transmission circuit (1a) for camera selection input of the main unit (6)
) and the address of the signal transmission circuit (1a) for camera selection output of all terminals (5) are the same, and the camera selection input of the base unit (6) is the signal for camera selection output of all terminals (5). It is output only from the transmission circuit (la)'. Also, the main unit (6)
and camera operation signal transmission circuit (1b) for all terminals (5)
, (1b) (yes, the same address, and the camera operation input signal to the base unit (6) is output only from the camera operation output signal transmission circuit (1b) of all terminal units (5). (9
) is camera control 0-U.

The types of input signals will be specifically explained. When there is an input to select the camera (4) of a certain terminal (5), the camera selection input inputs the corresponding 4-hit signal to the camera selection input signal transmission circuit (1a) and at the same time sends a stroke to the Key input. There is an input, the signal is sent to the camera selection output signal transmission circuit (LA)' of all terminal devices (5), the 4-pit signal is processed in each terminal device, and a certain terminal device (5)
Camera selection output occurs only in °. Also, after that, when there is a camera selection input from another terminal (5), the same signal is transmitted, and at the same time, a camera selection output is generated only to the other terminal (5), and at the same time, the terminal from which the camera selection signal was first generated Vessel (5
) produces a deselection output. The camera operation input is an input for driving the camera stand, camera lens, 7s, etc., and is used to move the camera stand up, down, left and right.UP1DoIA/n, Le
ft, Right, cy) 4 inputs and Far, Near, which changes the focus, 0pen C1 which changes the aperture.
ose 1-J,-Changing Wid e, Te l
There is an input of e. In addition to this, there is also a wiper on/off input to move the wiper, a defrost defrost zero star on,
There is an off input. Control inputs include turning on and off the power of the camera (4) for each terminal (5), turning on the camera lighting,
off, the broadcast speaker is on, and the broadcast speaker is off.

In the camera remote control system as described above, the camera operation input section of the parent unit (6) is constructed as shown in FIGS. 4 and 5. Far, Near, 0pen
, C1ose, WidelTelelUP, Do
The inputs of vyn and LeftSRight are two I
C(+ol, (11), E'J]-coded 4
It becomes a hit signal and is input to INI to IN4 of the signal transmission circuit (1bl) for camera position operation input, and at the same time
A strobe signal is input to P Key. When the camera position operation input signal transmission circuit (1b1) normally transmits,
Although the signal is transmitted twice, if there is an UP Key input, the signal is transmitted continuously while the UP Key is rHJ. Therefore, while the input is rHJ, the 4
The pit signal is transmitted to the camera operation output signal transmission circuit (lb)' of all terminal devices (5). In addition, there are wiper on/off, defroster on/off inputs, and as shown in Figure 5, these are wiper inputs with different address settings from the camera position operation input signal transmission circuit (lbl). A differential zero star signal transmission circuit (1b+) is used.

For example, if the 4-hit signal is Wyno\-ON and Def0 Sta-Off, 110.0.1 is input to IN4-INI, and at the same time, a strobe signal is input to ON Key, and the 4-pit signal is transmitted twice. do.

On the other hand, in the terminal device (5), FarNear...
As shown in FIG. 6, the signal for camera position operation of
) and the camera position operation output signal transmission circuit (lbl)' with the same address outputs a 4-pit signal. IC+121
．． In 03), when inh is ILJ, the output capacitors Xo to X7 set by the inputs to C and BIA are connected to IN. Camera position operation output signal transmission circuit (l
bt)' (7) Busy and SCRON outputs are also used as outputs. The received signals and outputs are shown in FIGS. 8(a) to 8(f). The busy terminal is normally "■" and becomes "L" during signal reception, and 5CRON is a terminal that becomes rHJ for a certain time when the 4-bit signal changes. 6th
I C (+41 in the figure outputs rHJ from the "Q" terminal at the same time as the rHJ signal of 5CRON is input, and the main unit (6)
When the continuous transmission of is completed, the signal disappears, and busy becomes rHJ, the Q terminal returns to rLJ. Therefore, the main unit (6)
While transmitting signals such as FarNear..., the signal transmission circuit (1) for camera position operation output of the terminal (5)
rHJ is output from the terminal corresponding to each signal from b1)'. Also, each time a signal is received from the wiper-def zero star signal transmission circuit (lbz) of the terminal device (5) as shown in Fig. 7, a 4-hit signal is sent to the SCROM only for the time when it becomes ■''. Output.

Therefore, in this case, the Far for controlling the camera position is
, Near, 0pen1Cfose, Wide,
Ti1e1UP1Dovn, LeftlRight(
Signal transmission port/path (1BL), (LBT) for 7J continuous transmission signals and wiper defroster on,
Two OFF signal transmission circuits (lbz) and (lbz)' were required for both the base unit (6) and the terminal unit (6).

[Purpose of the invention]

An object of the present invention is to integrate the signal transmission circuit for camera operation output of the terminal device into one, and to make the signal transmission circuit for camera operation input of the parent device a circuit compatible with the terminal device. The objective is to reduce the cost by reducing the number of signal transmission circuits used.

[Disclosure of the invention]

The input method of the signal transmission circuit for camera operation input of the base device (6) of the present invention is shown in FIGS. 9 and 10, and the output method of the signal transmission circuit for camera operation output of the terminal device (5) is shown in FIG. 11. Shown below.

The difference from the conventional one is that the terminal device (6)'s camera operation output signal transmission circuit (lb)' can be used for wiper, differential zero star, on,
The point is that it includes the off-use version. The address is the base unit (61
The signal transmission circuit (1b2) for the wiper differential 0 star and the signal transmission circuit (lb)' for camera operation output of the terminal device (6) have the same address, and the signal transmission circuit for camera position operation input of the main unit (6) The circuit (lbr) is usually in a separate atmos. Unlike the conventional wiper defroster signal transmission circuit (lbz) of the main unit (6), the key input is OFF.
It is an input to y. The difference with ON Key input is that "H" is output from the SCROM terminal (5CROFF terminal) on the receiving side.
signal transmission circuit for camera operation input such as ar...
) is coded with I C (+o+, (11)) as in the past, but at the same time as "H" is input to UPKey, it is input to the address via OR gate (16) to change the address. However, it should be the same as the address of the camera operation signal transmission circuit (lb)' of the terminal (5).Also, if there is no input, the address will be different.

Here, the signal transmission circuit (lb
Explain why x) must be set to a different address. In order to integrate the terminal device (5) into one signal transmission circuit, the wiper defroster signal transmission circuit (l
b+) must be an OFF Key input. However, this wiper defroster signal transmission circuit (lbz)
When receiving the signal sent with 0FFKey, UP
Key input becomes ineffective. Therefore, UPKey
Operation signal transmission circuits that require input must be turned off.
The signal transmission circuit (l
Set the address to a different address so as not to receive the signal from the terminal (5) and the signal transmission circuit for the camera operation output (lb)' of the terminal (5) and the signal transmission circuit for the wiper differential zero star (lb)' only when transmitting.
lbz) must be the same address. Also, if the wiper operation is performed just before a camera position operation such as Far or Near, the wiper operation signal will be
Since there is an input in the camera position operation output signal transmission circuit (lbx)', it will be received at the same address as the one for wiper operation, and subsequent camera position operations will be
Since PKey cannot be accepted, it becomes ineffective. Therefore, as shown in FIG. 9, this is a time chart of the output of the camera operation output signal transmission circuit (lb)' when the RELY output terminal receives the signal transmitted by 0RKe. As can be seen from this, the RELY output is an output terminal that becomes rHJ when receiving the signal transmitted by 0FFKey.

Since this output is input to 0RKey, the camera position operation input signal transmission circuit (lbl) then transmits the 0RKey input signal by itself, and then returns to UPKey to receive it.
can be entered, and subsequent inputs can also be sent.

The output method of the signal transmission circuit of the terminal (5) is shown in FIG. The S-R latch α (to) and the falling detection circuit θη surrounded by the dotted line operate in the same way as the conventional IC α4), and at the same time set the 5CRON output to the S-R latch Q@, the busy output is set to the inverter α. The signal inverted at ~ and the SCROM output are input to the falling detection circuit (17) via the OR gate (19).
) is input to the S-R latch 06) glue set.

Furthermore, from 4 pit output OUT 1 to 0UT4, ICα
2), 031 and AND game) (20). When a camera position operation signal such as FarNear is received, the 4-pit output is output from ICα21. Each is decoded and output from H. Since the base unit (6) is transmitting by UPKey, SCROFF is not output, and therefore, in this case, Wino~-, Def0 Star ON, OFF outputs are not output.

Conversely, if a wiper defroster ON/OFF signal is received, as shown in the time chart in Figure 12, 5CRON is not output, but SCROFF is output, and the RELY output becomes rHJ. So RELY's r
By inputting HJ output to IC02), (13) (7) inh, ICα2), 03) becomes incapable of accepting input, and AND with rHJ output of 5CROFF.
A signal transmission circuit (l) for camera operation output is connected from the gate (20).
b) Wiper and defrost according to the 4-pit signal
Outputs 1 off signal.

〔Effect of the invention〕

Since the present invention is configured as described above, it is possible to reduce the number of signal transmission circuits used in the terminal device, thereby reducing costs, and also to make the signal transmission circuit for camera operation input of the base unit into a circuit compatible with the terminal device. This has the effect of allowing remote control of the camera.

[Brief explanation of drawings]

Figure 1 is a basic circuit diagram of the signal transmission circuit, Figure 2 is the format of the control signal shown above, and Figure 3 is the camera remote control 0-
The basic circuit diagram of the 11z system, Figures 4 and 5 are respectively conventional parent unit camera operation signal transmission circuit diagrams, Figures 6 and 7 are respectively conventional terminal unit camera operation signal transmission circuit diagrams, and Figure 8. (a) to (f) are output time charts of the same as above, FIGS. 9 and 10 are circuit diagrams of an embodiment of the base unit camera operation signal transmission circuit of the present invention, and FIG. 11 is a terminal unit of the present invention. A circuit diagram of an embodiment of the camera operation signal transmission circuit, FIGS. 12(a) to 12(f) show the output time
=-t-. (lbx)...Signal transmission circuit for camera position operation input,
(l b2)... Signal transmission circuit for wiper differential zero star, (Ib)'... Signal transmission circuit for camera operation output, (
4)...Camera, (5)...Terminal, (6)...Base unit, (15)...OR gate, 06)...S-R Sochi, 07)... Fall detection circuit, 08)...Inverter, (19j...OR gate, Nod...AND gate. Agent Patent attorney Ishi 1) Chief 7 Figure 5 Figure 6 Figure 7 Procedure amendment (voluntary) 20/27/1980゛・. Dear Commissioner of the Japan Patent Office, J-1, Indication of the case, Patent Application No. 104467, filed in 1982, 2, Name of the invention, Camera remote control system 3, Person making the amendment, Relationship to the case, Patent applicant, Location, Oaza Kadoma, Kadoma City, Osaka Prefecture. 1048 Address Name (583) Matsushita Electric Works Co., Ltd. Representative Iku Kobayashi 4, Agent Zip Code 530 5, Date of Amendment Order Original Application Number Patent Application No. 104467/1989 1, Specification of the Application, Page 3, No. 13 In the line ``7-do de'' is changed to ``℃-do wa''
I am corrected. 2. In the 8th line of page 9 of the same page, "using" is replaced with "reducing"
I am corrected. 3. On page 10, line 11 of the same page, ``It's different when it's gone'' is corrected to ``When it's gone, it's the original.'' Agent Patent Attorney Ishi 1) Choshichi

Claims (1)

[Claims] (1) In a camera remote control system consisting of a plurality of terminal devices that control the camera and a base device that transmits signals to control the camera to the terminal devices,
Wiper, differential 0 star on/off signal
Input to 0FFKey of the Duff 0 Star signal transmission circuit,
The camera position operation input is inputted to the UP Key of the signal transmission circuit for camera position operation input, and also inputted to the OR gate, and the RE of the signal transmission circuit for camera position operation input is inputted.
The LY output is input to the ORkey and simultaneously inputted to the OR gate, and the output of the OR gate is inputted to the address of the camera position operation input signal transmission circuit to form a master unit, and the camera operation output signal is sent to the terminal. A transmission circuit is provided, and the SCROM output of the signal transmission circuit for camera operation output is connected to S
- At the same time as setting in the R latch, the falling edge of the OR gate output with the inverted signal of the busy output is detected, and the output is input to the S-R latch glue set, and the output of the S-R latch is input to the IN input of the IC. and inputs the 5CROFF output to the input gate with the RELY output of the camera operation output signal transmission circuit prohibiting the reception of the IC;
A camera remote control system characterized in that a terminal device is formed so as to obtain a defroster signal output from the output of the AND gate.