JPH073712B2 - Video playback device remote control device and video playback system - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION The present invention will be described in the following order.

A Industrial Field B Outline of Invention C Conventional Technology D Problems to be Solved by the Invention E Means for Solving Problems F Action G Example (G-1) Configuration of Example (FIG. 1) (Fig. 10) (G-2) Operation of the embodiment (Figs. 11 to 14) H Effect of the invention A Industrial field of application The present invention is a video reproduction such as a video tape recorder (VTR) or a videotex. The present invention relates to a remote control device for an apparatus and a video reproduction system using the remote control device.

B. Summary of the Invention The present invention is directed to a remote control device for a video reproducing device such as a video tape recorder (VTR) or a videotex, in which a timer set value is set to a forward or reverse direction for each predetermined rotation angle according to a rotating operation direction of a rotary dial. By transmitting a predetermined control command for stepping in the direction, the setting control of the timer operation of the video reproducing apparatus having the timer operation function can be remotely operated by rotating the rotary dial plate.

C Conventional Technology Conventionally, in the VTR, in addition to the normal recording / reproducing mode, multi-functionalization has been promoted by adding a variable speed reproducing function for changing the image reproducing speed and a timer operation function such as recording reservation.
As the variable speed playback function in the VTR, there is a variable speed playback operation that arbitrarily changes the video playback speed, and a variable speed playback operation that switches the playback speed to still image playback, 1 / 2x speed playback or 2x speed playback. Are known. Further, in the conventional multi-functional VTR, a large number of operating members provided for various functions such as an up / down switch, a numeric keypad switch, and a rotary dial are configured to operate according to a predetermined procedure. Therefore, for example, a complicated operation is required to perform a subtle operation of a target scene on a recorded video tape or an operation such as finding an editing point by using the variable speed reproduction function or the like. . In addition, the applicant of the present invention is
In order to improve the operability of, the so-called variable speed reproduction operation and variable speed reproduction operation are controlled by rotating the rotary operation member.
We have previously proposed a video tape recorder that realized the operation control function and timer setting function of the JOG / SHUTTLE mode (see Japanese Patent Application No. 60-557).

A remote control device (a so-called remote control or commander) for remotely operating a VTR that has multiple functions as described above.
Operates a number of operation members such as up / down switch and numeric keypad switch for each function according to a predetermined procedure to supply a predetermined control command in a predetermined format to the VTR body for operation control. Is supposed to do.

D Problems to be Solved by the Invention In a remote control device for a video reproducing device such as a conventional VTR, which has been multi-functionalized as described above, generally, an up / down switch or a numeric key switch provided for each function is provided. The operability of various operation members such as is poor, and the timer setting operation cannot be performed by rotating the rotary dial.

E Means for Solving Problems In order to solve the above-mentioned problems, a remote control device for a video reproducing apparatus according to the present invention has a rotary dial rotatably provided and a rotary operation of the rotary dial. When the variable speed reproduction mode is set by the rotation detecting means for detecting the direction and the rotation speed, the operation mode setting means, and the operation mode setting means, the rotation operation direction of the rotary dial is detected based on the detection output of the rotation detecting means. And form a control command that specifies the operating direction and operating speed according to the rotation speed,
When the timer channel mode is set, based on the detection output by the rotation detection, a control command for stepping the timer setting value forward or backward for each predetermined rotation angle is formed according to the rotation operation direction of the rotary dial. Signal transmission means for transmitting a control command formed by the signal processing means, and a control command by rotating operation of the rotary dial is transmitted from the transmission means to the video reproducing device, and the video is reproduced. It is characterized in that remote control of variable speed reproduction operation of the reproducing apparatus and setting control of timer operation are performed.

Further, the video reproducing system according to the present invention includes a rotary dial provided so as to be rotatable, a rotation detecting means for detecting a rotation operation direction and a rotation speed of the rotary dial, an operation mode setting means, and the operation mode setting. When the variable speed reproduction mode is set by the means, a control command for designating an operation direction and an operation speed in accordance with the rotation operation direction and the rotation speed of the rotary dial is formed based on the detection output by the rotation detection means, and the timer channel When the mode is set, a control command for stepping forward or backward the timer set value for each predetermined rotation angle is formed according to the rotational operation direction of the rotary dial based on the detection output by the rotation detection means. A remote comprising a signal processing means and a transmitting means for transmitting a control command formed by the signal processing means. Creating device, a receiving part for receiving a control command sent from the sending part of the remote operation device, a video playback means having a variable speed playback function, and the video playback according to the control command received from the receiving part. Control means for controlling the variable speed reproduction operation of the means and a timer channel for recording reservation, and a control means for setting the channel, and a control command by rotating operation of the rotary dial transmitted from the remote operation device. Is received, the video reproducing apparatus is configured to perform a variable speed reproducing operation and a timer operation.

In the remote control device of the video reproducing apparatus according to the present invention, when the variable speed reproduction mode is set by the operation mode setting means, based on the detection output by the rotation detecting means for detecting the rotation operation direction and the rotation speed of the rotary dial, By the signal processing means,
When a control command for designating an operation direction and an operation speed is formed according to the rotation operation direction and the rotation speed of the rotary dial and transmitted from the transmission means, and the timer channel mode is set by the operation mode setting means, Based on the detection output by the rotation detecting means, the signal processing means forms a control command for stepping the timer set value in the forward direction or the reverse direction for each predetermined rotation angle according to the rotating operation direction of the rotary dial. Then, the remote control of the variable speed reproduction operation of the video reproduction apparatus and the setting control of the timer operation are performed by transmitting from the transmission means.

Further, in the video reproducing system according to the present invention, when the variable speed reproducing mode is set by the operation mode setting means, the remote control device is based on the detection output by the rotation detecting means for detecting the rotation operation direction and the rotation speed of the rotary dial. Then, the signal processing means forms a control command for designating the operating direction and the operating speed in accordance with the rotating operation direction and the rotating speed of the rotary dial and transmits the control command from the transmitting means, and the operating mode setting means controls the timer channel. When the mode is set, based on the detection output from the rotation detecting means, the signal processing means causes the timer set value to be stepped in the forward or reverse direction for each predetermined rotation angle in accordance with the rotating operation direction of the rotary dial. A control command for advancing is formed and transmitted from the transmitting means. Further, the video reproducing device receives the control command transmitted from the remote control device by the receiving unit, and controls the variable speed reproducing operation of the video reproducing device by the control means according to the received control command. Take action.

G Example One example of a video tape recorder to which the present invention is applied will be described below in detail with reference to the drawings.

(G-1) Configuration of Embodiment The embodiment shown in FIGS. 1 to 14 is one in which the present invention is applied to a stationary type multi-function VTR.
As shown in FIG. 2 and FIG. 2, the VTR main body 100 and the VTR main body 100
The remote control device 200 is configured to perform remote control of.

The VTR main body 100, as shown in the block diagram of FIG.
A system control microcomputer 7 for controlling the operation of a motor servo circuit 3 for driving the reel motor 1, the capstan motor 2, etc., a signal processing circuit 4 for video signals and audio signals, a display drive circuit 5, a tuner circuit 6, etc. ing. In the system control microcomputer 7, as shown in FIG. 2, operation command signals from various operation switches 8 arranged on the front panel 110 and the rotary dial plate of the rotary dial operating device 10 are provided.
11 or the operation state signal of the dial operation ring 12 detected by the three optical sensors 13, 14, 15 by detecting the rotation operation state of the dial operation ring 12, and the operation command signal formed by the dial encoder microcomputer 8 and the remote operation device 200. The remote control signal is received by the receiving unit 16 and the operation command signal formed by the remote control microcomputer 17 is supplied.

In this embodiment, on the front panel 110 of the VTR main body 100, as shown in the front view of FIG. 2, a power switch 8A, a rewind operation switch 8B for setting various modes, a reproduction operation switch 8C, and a fast forward operation switch 8D. Various operation switches 8 such as a stop operation switch 8E and a temporary stop operation switch 8F are provided. Further, the front panel 110 is provided with an insertion port 111 for mounting a tape cassette and a receiving section 16 for remote control, a display section 112 for displaying a timer, and a sub panel 120 on the front right side. The rotary dial operating device 10 is provided in the. Further, the sub-panel 120 is formed so as to be openable and closable so that the upper end side of the sub-panel 120 is tilted forward with the lower end side thereof as an axis.
It is adapted to be opened and closed by pressing a pressing operation button 113 provided on 110. Then, the front panel 11
Various operation switches in the timer set mode and the timer reservation mode are provided in the portion of the 0 closed by the sub panel 120. Further, the front panel 11
In 0, an input switching operation switch 10s is provided in a portion closed by the opening / closing lid 114.

Further, as shown in the block diagram of FIG. 1, the remote control device 200 includes a rotary dial operation device 20 and three optical sensors 2 indicating the rotary operation state of the rotary dial operation device 20.
A dial encoder microcomputer 24 that forms an operation command signal of a predetermined operation mode that is detected by 1, 22, and 23 and is designated by various mode setting switches 25A and 25B,
The transmission encoder microcomputer 26 that forms a control command based on the operation command signal supplied from the dial encoder microcomputer 24, and the control command formed by the transmission encoder microcomputer 26 to the VTR main body 100 side. It is configured by a transmitting unit 27 that transmits to the receiving unit 16.

In this embodiment, the mode setting switches 25A, 25B
Has one end commonly connected to a power supply terminal and the other end connected to each input port of the dial encoder microcomputer 24 and diodes 25a and 25a.
It is connected to the interrupt port of the microcomputer 24 through the OR circuit by b. Further, issuing diodes 28A, 28B for displaying the operation mode set by operating the mode setting switches 25A, 25B are connected to the output port of the dial encoder microcomputer 24.

Then, the rotary dial operating device in this embodiment
As shown in FIG. 3 which is an exploded perspective view of FIG. 3 and FIG. 4 is a sectional view of the assembled state, 20 is a rotation unit rotatably supported by a bearing portion 202 provided on the base substrate 201. Inner rotary dial plate 2 with shaft 211 integrally formed in the center
10, a dial plate 221 that is rotatable around the rotary shaft 203 with the outfield dial operation ring 220 locked, and a cam shaft 231 that is inserted into a heart-shaped cam hole 222 formed in the dial plate 221. And a slide plate 230 provided.

The rotary dial operating device 20 is provided on the base substrate 201.
Optical sensors that optically detect the rotating operation state of the
Three through holes 205, 206, 207 in which 21, 22, 23 are arranged are formed.

Further, as shown in FIG. 5, the slide plate 230 is locked by a locking projection 203 provided on the base substrate 201 so as to be slidable in a radial direction passing through the bearing 202, and The elastic force is applied by the torsion coil spring 232. Then, the cam shaft 231 provided on the slide plate 230, as shown in FIG.
It is in contact with the inner surface of the heart-shaped cam hole 222 and is in contact with the inner surface of the heart-shaped cam hole 222 by the torsion coil spring 232.

Here, considering the case where the outer dial operation ring 220 is rotated by + θ ° and the cam shaft 231 is relatively at the position shown by the broken line in FIG. 7, the cam shaft 231 and the heart-shaped cam hole are considered. At the contact point with the inner surface of 222, the component force F ′ of the rotational torque F of the outer dial operating ring 220 and the component force F of the elastic force Fo applied to the slide plate 230 by the torsion coil spring 232 are balanced. It will be. When the rotating torque does not act on the outer dial operating ring 220, the cam shaft 231 is constantly returned to the tip position of the heart-shaped cam hole 222 by the elastic force of the torsion coil spring 232, and the outer dial operating ring 220 is The dial plate 221 provided is automatically returned to a predetermined rotation angle position. Then, the dial plate 221
In the state where the cam shaft 231 is returned to the tip position of the heart-shaped cam hole 222, the base substrate 201
At the position corresponding to the first and second through holes 204, 205 of
And second through holes 224 and 225 are formed.

As shown in FIG. 7, the inner rotary dial plate 210 has a polygonal cam surface 212, for example, a regular hexagon, formed on its inner peripheral wall, and the cam roller mounted on the cam shaft 231. 233 is adapted to come into contact with the cam surface 212. Since the cam roller 233 is in contact with the cam surface 212 of the inner rotary dial plate 210, when the rotary operation is performed, the elastic force given to the cam shaft 231 by the torsion coil spring 232 causes Above cam surface 2
A click feeling is given by the torque change according to the shape of 12.

In this embodiment, the reflector 21 having a striped pattern as shown in FIG.
3 is attached to the inner rotary dial plate 210 in a ring shape, and as shown in FIG. 9, a striped reflection plate 226 in which black and white colors are alternately applied is ring-shaped on the dial plate 221. Pasted on.

Reflecting plates 213, 226 provided on the dial plates 210, 221
The three optical sensors 21, 22 and 23 for detecting the reflected light by the light-emitting diode and the phototransistor are used for the three optical sensors 21, 22 and 23, respectively.
That the optical sensors 21 and 22 of the third embodiment supply detection outputs having a phase difference of 90 ° to each other to the microcomputer 24 for the dial encoder, and that the third optical sensor 23 rotates the dial plate 221. Are provided at the positions of the through holes 204, 205, 206 of the base substrate 201 so as to supply the detection output indicating the above to the dial encoder microcomputer 24.

(G-2) Operation of the embodiment In this embodiment, in the remote controller 200, the normal dial encoder microcomputer 24 is in the standby state, and the power is off in the standby state. And the mode setting switch 25A, 25B
By the selection operation, the interrupt signal is input to the interrupt port of the dial encoder microcomputer 24 and the power is turned on, and the mode setting signal by the selection operation of the mode setting switches 25A and 25B is transmitted to the dial encoder microcomputer. It is input to 24 input ports and the operation mode is set.

Here, each of the light emitting diodes 28A, 28B for mode display connected to the output port of the dial encoder microcomputer 24 is normally off in the standby state described above, and the mode setting switches 25A, 25B are selected. When the operation mode is set by the operation, it is selectively turned on to display the operation mode.

The dial encoder microcomputer 24 and the transmission encoder microcomputer
26 indicates JOG / SHUT as shown in the flow chart of FIG.
Depending on the selection operation of the TLE mode setting switch 25A or the timer channel mode setting switch 25B, JOG / SHUTT
The processing operation of the LE mode or the timer channel mode is performed, and the control command of the operation mode selected and set is transmitted from the transmission unit 27.

In this embodiment, the dial encoder microcomputer 24 includes the JOG / SHUTTLE mode setting switch 2
5A or timer channel mode setting switch 25B
When is operated, the interrupt is prohibited and the processing operation of the selected operation mode is started. It should be noted that before moving to the processing operation of the JOG / SHUTTLE mode, the still mode is specified once and the JOG / SHUTTLE mode is entered from the still state. Then, the processing of each operation mode is performed according to the rotating operation of the rotary dial operating device 20, as described later,
If the rotary operation of the rotary dial operation device 20 is not performed for a predetermined time, the interruption is released and the standby state is automatically restored.

In the processing operation of the JOG / SHUTTLE mode, the dial encoder microcomputer 24 operates in the JOG mode based on the detection output of the third optical sensor 23 that detects the reflected light of the reflection plate 226 provided on the dial plate 221. And SHUTT
When the LE mode is determined and, for example, the outer dial operating ring 220 of the rotary dial operating device 20 is rotationally operated, the mode is determined to be the SHUTTLE mode, and the pattern of the reflecting plate 226 is set to the optical sensors 21, 22. , 23, based on each detection output as shown in FIG. 11 obtained by reading,
For example, speed data A and B as shown in Table 1 which are preset according to the rotational angle position of the outer dial operation ring 220 are supplied to the transmission encoder microcomputer 26 together with the operation direction data D.

The transmission encoder microcomputer 26 reproduces in accordance with the rotational angle position of the outer dial operation ring 220 based on the speed data A and B and the operation direction data D supplied from the dial encoder microcomputer 24. SHUT to command movement direction and playback speed
A control command for the TLE mode is formed and supplied to the transmission unit 27.

Further, the dial encoder microcomputer 8 operates in the JOG mode when the inner rotary dial plate 220 is rotated without rotating the outer dial operation ring 220 in the state where the JOG / SHUTTLE mode is set. Each of the through holes 2 formed in the dial plate 221 is judged.
Inversion plate 213 of the inner rotary dial plate 210 through 23,224
The inner rotary dial plate based on the detection outputs obtained by detecting the reflected light by the optical sensors 21 and 22.
Speed data A and B indicating the rotation direction and rotation speed of 210
And the direction data D are supplied to the transmission encoder microcomputer 26. That is, the dial encoder microcomputer 24 causes the first optical sensor 21 to rotate when the inner rotary dial plate 210 is rotated.
If the level of the detection output waveform of the second optical sensor 23 at the rising change point of the detection output waveform of "H" is "H" as shown in FIG.
It is determined that 210 has been normally rotated, and if it is "L" as shown in FIG. 12B, it is determined that the inner rotary dial plate 210 has been reversely rotated. Further, the dial encoder microcomputer 24 includes the inner rotary dial plate.
By measuring the time by utilizing the interval between the rising change points of the detection output waveform as shown in FIG. 12C by the first optical sensor 21 when the 210 is rotated, the inner rotary dial plate 210 Is calculated, and speed data A and B as shown in Table 2 are supplied to the transmission encoder microcomputer 26.

The transmission encoder microcomputer 26 receives the speed data A and B and the operation direction data D supplied from the dial encoder microcomputer 24.
On the basis of the above, the JOG mode control command for instructing the reproduction operation direction and the reproduction speed according to the rotation operation direction and the rotation speed of the inner rotary dial plate 210 is formed to form the transmission unit 2
Supply to 7.

Then, the transmission unit 27 uses the SHUTTL mode or the SHUTTL mode supplied from the transmission encoder microcomputer 26.
The control command for designating the JOG mode is divided into a command d indicating the reproduction operation direction and a command s indicating the reproduction operation speed, and, for example, as shown in FIG. Split transmission. The frame feed command is issued by transmitting only the direction command d, and the still reproduction command is issued by transmitting only the speed command s.

Here, the control command for remote operation transmitted from the transmission unit 27 is a VT capable of remote control which is conventionally used.
It has a conventional coding system and format that does not change the operation processing algorithm of R.

Then, on the VTR main body 100 side, the receiving unit 16 receives the control command sent from the sending unit 27 of the remote operation device 200, and operates the playing operation direction and the playing operation speed specified by the control command. The command signal is formed by the remote control microcomputer 17, and the system control microcomputer 7 controls the operation of the motor servo circuit 3, the signal processing circuit 4, the display drive circuit 5, etc. Device 200
JO according to the rotation operation of the rotary dial operation device 20 installed in
The operation control of G mode or SHUTTLE mode is performed.

Further, in the processing operation of the timer channel mode, the dial encoder microcomputer 24 detects the light reflected by the reflection plate 213 of the inner rotary dial plate 210 by the optical sensors 21 and 22. Based on the output, the direction data D indicating the rotating operation direction of the inner rotary dial plate 210 is supplied to the transmission encoder microcomputer 26 for each unit rotation angle (for example, 30 °) of the inner rotary dial plate 210.

The transmission encoder microcomputer 26, based on the rotational operation direction data D supplied from the dial encoder microcomputer 24, outputs a VTR according to the rotational operation direction for each unit rotational angle of the inner rotary dial plate 210. According to the timer channel setting program of the main body 100, a timer channel mode control command that advances the set value of the recording timer or the receiving channel by "+1" or "-1" (for example, the inner rotary dial plate 210 is rotated clockwise). Control command up to step forward by "+1" when it is rotated in the direction,
When the inner rotary dial plate 210 is being rotated counterclockwise, a control command dw) for incrementing by "-1" is formed and supplied to the transmitter 27.

Then, the transmitting unit 27 repeatedly transmits the control command up or dw in the timer channel mode supplied from the transmitting encoder microcomputer 26, every three frames with a cancel time Tc of three frames at intervals, as shown in FIG. To do.

Then, on the VTR main body 100 side, the control command up or dw for the timer channel mode transmitted from the transmission unit 27 of the remote control device 200 is controlled by the reception unit 16 described above.
The remote control microcomputer 17 receives the operation command signal of the timer channel mode specified by the control command, and the system control microcomputer 7 operates the timer control mode according to the timer channel setting program. Set the receive channel value to "+1" or "-1"
Step by step and set timer channel for recording reservation.

H Effect of the Invention As is apparent from the above description of the embodiments, in the remote control device and the video reproducing system of the video reproducing device according to the present invention,
In the remote control device, when the variable speed reproduction mode is set by the operation mode setting means, the signal processing means detects the rotation dial direction of the rotary dial based on the detection output of the rotation detection means for detecting the rotation operation direction and the rotation speed of the rotary dial. Control of variable speed reproduction operation according to the rotating operation direction and the rotating speed of the rotary dial by forming a control command for designating the operating direction and the operating speed according to the rotating operation direction and the rotating speed and transmitting the control command from the transmitting means. When the timer channel mode is set by the operation mode setting means, the direction of rotation of the rotary dial is rotated by the signal processing means based on the detection output of the rotation detecting means. A control command that advances the timer setting value in the forward or reverse direction for each predetermined rotation angle By setting and transmitting from the transmitting means, the setting control of the timer operation of the video reproducing apparatus can be remotely operated by rotating the rotary dial, and the setting of the timer operation of the video reproducing apparatus having the timer operation function. The operability of remote control operation can be improved.

[Brief description of drawings]

1 to 14 show an embodiment of a video tape recorder to which the present invention is applied, and FIG. 1 is a block diagram showing an electrical configuration of the video tape recorder of this embodiment, and FIG. FIG. 3 is an external perspective view of the video tape recorder of the above embodiment, FIG. 3 is an exploded perspective view showing the structure of the rotary dial operating device provided in the remote control device of the above embodiment, and FIG. FIG. 5 is a cross-sectional view of an essential part of a rotary dial operating device, FIG. 5 is a schematic plan view of a base substrate in a state where a slide plate that also constitutes the rotary dial operating device is mounted, and FIG. FIG. 7 is a schematic plan view of the dial plate mounted on the outer dial operating ring which also constitutes the rotary dial operating device, and FIG. 7 shows the inside of the rotary dial operating device which also constitutes the rotary dial operating device. FIG. 9 is a schematic plan view showing a shape of a cam surface formed on the rotary dial plate, and FIG. 8 is a schematic plan view showing a code pattern of a reflection plate provided on the inner rotary dial plate. Similarly, the figure is a schematic plan view showing the code pattern of the reflector provided on the dial plate attached to the outer dial operation ring,
FIG. 11 is a flow chart showing the operation of the dial encoder microcomputer and the remote control microcomputer of the remote control device in the above embodiment, and FIG. 12A and 12B are waveform charts showing respective detection outputs obtained by the linear sensor.
FIG. 12C is a waveform diagram showing each detection output obtained by each optical sensor by the rotation operation of the inner rotary dial plate in the above embodiment, and FIGS. 13 and 14 are the remote control device. 3 is a signal waveform diagram schematically showing the transmission output of each transmission unit of FIG. 7,9,17,24,26 …… Microcomputer, 10,20 …… Rotary dial operation device, 13,14,15,21,22,23 …… Optical sensor, 25A, 25B …… Mode setting switch, 27 …… Transmitter, 100 …… VTR main unit, 200 …… Remote control device, 210 …… Inner rotary dial plate

Claims (2)

[Claims] 1. A rotary dial rotatably provided, a rotation detecting means for detecting a rotary operation direction and a rotation speed of the rotary dial, an operation mode setting means, and a variable speed reproduction mode by the operation mode setting means. When the timer channel mode is set, a control command for designating an operation direction and an operation speed in accordance with a rotation operation direction and a rotation speed of the rotary dial is formed based on the detection output of the rotation detection means. Signal processing means for forming a control command for stepping the timer set value forward or backward for each predetermined rotation angle in accordance with the rotation operation direction of the rotary dial based on the detection output by the rotation detection means, A transmission means for transmitting a control command formed by the signal processing means, and a control command by rotating the rotary dial. The command was transmitted to the video reproducing apparatus from said transmitting means, the remote control device of the video reproducing apparatus is characterized in that to perform the setting control of the remote control and the timer operation of the variable speed reproduction operation of the video reproducing apparatus. 2. A rotary dial rotatably provided, a rotation detecting means for detecting a rotary operation direction and a rotation speed of the rotary dial, an operation mode setting means, and a variable speed reproduction mode by the operation mode setting means. Once set,
When a timer channel mode is set, a control command for designating an operation direction and an operation speed is formed according to a rotation operation direction and a rotation speed of the rotary dial on the basis of a detection output by the rotation detection means, and the rotation detection means is set. The signal processing means for forming a control command for stepping the timer set value in the forward direction or the reverse direction for each predetermined rotation angle based on the detection output by the rotary dial, and the signal processing means. A remote control device comprising a transmission means for transmitting the formed control command; a reception part for receiving the control command transmitted from the transmission part of the remote control device; and a video reproduction means having a variable speed reproduction function. According to the control command received by the receiving unit, control of the variable speed reproduction operation of the video reproducing unit and timer timer for recording reservation are performed. And a video playback device having control means for setting a channel channel, the video playback device performing a variable speed playback operation by receiving a control command by the rotary operation of the rotary dial transmitted from the remote control device. A video playback system characterized by performing a timer operation.