JPH09205620A - Replay mechanism for video equipment - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a replay mechanism by which a user easily views a scene which he wants to see through closeup. SOLUTION: This video equipment is made up of an antenna 1, a tuner 2, a VTR 3, a selector 4 selecting them, and an A/D converter 5, a memory 6, a classification adaptive processing unit 7, a D/A converter 8 being components of a path (2) as the replay mechanism branched from the selector 4, a replay selection element 9 selecting the path (1) or (2), and a CRT driver 10 to drive a monitor 11 of the post-stage such as a CRT. To the classification adaptive processing unit 7, an oscillator 12 as a distance detection means, a transducer 13, a receiver 14, a range measurement device 15 measuring the distance from the result, a zoom ratio decision device 16 and a zoom selection element 17 selecting zoomup/zoom-down are connected.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a replay mechanism of a video device which is suitable for recording / reproducing video on a television receiver or the like.

[0002]

2. Description of the Related Art In recent years, with the development of multimedia in broadcasting due to the development of telecommunications technology, image devices such as television receivers have been widely used all over the world for providing users with great entertainment and information. There is. In addition, there are a wide variety of broadcasting programs broadcast by television receivers, and attractive programs centered on entertainment viewing such as movies, sports broadcasts, documentary coverage, and music programs are provided.

However, a television receiver that receives a radio wave unilaterally emitted from a television station and directly displays it has only a passive function for a viewer (user) to watch a broadcast. That is, when watching sports broadcasts, documentary reports, and the like on television receivers, it is often the case that a decisive moment is taken out. In such a case, it is obvious that the details can be viewed without moving the body as much as in the conventional case by detecting and determining the approach of the user on the receiver side and zooming up the displayed image. The gist of the present invention relates to a method for satisfying such viewer's demand. The present invention relates to the "replay mechanism of a video device" disclosed in Japanese Patent Laid-Open No. 4-252198 filed by the present applicant.

[0004]

SUMMARY OF THE INVENTION The present invention has been made in view of the above point of view, and its object is to provide a replay mechanism for a video apparatus which allows a user to easily view a scene that he or she desires to see. And to provide a video device that more closely reflects the needs of users.

[0005]

In order to solve such a problem, the replay mechanism of the video apparatus according to the first aspect of the present invention provides a compression unit for an image from a received radio wave or a recording medium and an image compressed by the compression unit. A storage unit (memory) for sequentially updating and storing, a demodulation unit for restoring the compressed image read from the memory, a distance measuring unit for measuring the distance between the image device body and the viewer, and a restoration unit by the demodulation unit. When the viewer changes the distance from the video device main body in the image to be displayed, the distance measuring means measures the distance to the viewer, and the enlargement / reduction processing means for zooming up or down according to the measurement result and the monitor. The replay selecting means is provided for switching the image to be sent to either the received radio wave or the image directly from the recording medium or the image passed through the enlargement / reduction processing means.

The image reconstructed by the demodulation unit is provided with zoom selecting means for selecting zoom-up or zoom-up / zoom-down of the enlarging / reducing processing means. This enlarging / reducing processing means uses class classification adaptive processing. It is preferable to carry out.

Further, the distance measuring means is preferably at least one of an ultrasonic sensor, a photoelectric sensor and a microwave sensor.

In these, a picture-in-picture function for displaying both an image received directly from a radio wave or a recording medium and an image passed through the enlargement / reduction processing means on either a parent screen or a child screen, respectively. Both images are displayed on two screens respectively,
The picture size of each screen can be changed arbitrarily.
Equipped with the & picture function.

The replay mechanism of the video device of the second invention is
It is provided with a video device main body and a remote commander device capable of remotely controlling the video device main body. The remote commander device is provided with distance measuring means for measuring and transmitting the distance to the video device main body, and the video device main body compresses the received radio wave or the image from the recording medium and the compression unit. Storage unit for sequentially updating and storing the stored image, a demodulation unit for restoring the compressed image read from the storage unit, a distance processing unit for processing distance information from the distance measurement unit, and a restoration unit by the demodulation unit When the viewer changes the distance from the image device body in the image, the distance to the viewer is measured based on the distance information, and the enlargement / reduction processing means for zooming up or down according to the result is displayed on the monitor. The replay selection means is provided for switching the image to be sent to either an image received directly from the reception radio wave or the recording medium or an image passed through the enlargement / reduction processing means.

According to the replay mechanism of the video apparatus of the first invention, when the replay image is selected by the replay selecting means, the distance measuring means measures the distance between the video apparatus main body and the viewer, and the viewer watches the video apparatus main body. When the distance between and is changed, the enlargement / reduction processing unit zooms up or down the image to be restored at a predetermined zoom ratio and displays it on the display screen. As a result, it is possible to reduce the movement of the user approaching or leaving the monitor more than necessary.

By providing the zoom-up changeover switch, the user can select a replay image of a normal size and a zoom-up replay image.

By providing a multi-screen display function such as picture-in-picture or picture-and-picture, the user can simultaneously view the replay image and the received radio wave or the image directly from the recording medium. In particular, in picture-in-picture, the parent-child screen can be reversed, and when two pictures are displayed in picture-and-picture, the respective screen sizes can be arbitrarily changed, so it is possible to enlarge the desired image. it can.

According to the replay mechanism of the video device of the second invention, the video device main body and the remote commander device are provided,
With this remote commander device, the distance from the main body of the video device is measured. Then, when the user changes the distance from the video apparatus main body, the scaling processing means
The image to be restored is zoomed up or down at a predetermined zoom ratio and displayed on the display screen. As a result, the configuration of the video apparatus main body can be simplified and the user's whereabouts can be accurately grasped.

[0014]

BEST MODE FOR CARRYING OUT THE INVENTION Embodiments of a replay mechanism of a video device according to the present invention will be described below with reference to the accompanying drawings.

First Embodiment First, the configuration of a first embodiment of the replay mechanism of the video apparatus of the present invention will be described with reference to FIG. FIG. 1 is a block circuit diagram showing a first embodiment of a replay mechanism of a video device according to the present invention.

The structure of the replay mechanism of the video apparatus of the present invention is divided into an antenna 1 for receiving a broadcast signal, a tuner 2 for demodulating the broadcast signal, a VTR 3 as a recording medium, a selector 4 for selecting these, and a selector 4. A / D converter 5 for performing analog-to-digital conversion of a received signal forming a path, a memory 6 as storage means, a class classification adaptive processor 7 as scaling processing means for performing class classification adaptive processing described later, digital → It is composed of a D / A converter 8 for performing analog conversion, a path and a replay selection element 9 for selecting the path, a CRT driver 10 for driving a monitor 11 such as a CRT in the subsequent stage, and the like.

Further, the class classification adaptive processor 7 has an oscillator 12, a transducer 13, a receiver 14 as distance detecting means, a distance measuring device 15 for measuring distance from these results, a zoom ratio determining device 16, and a zoom ratio. A zoom selection element 17 for supplying zoom up and zoom up / down selection signals is connected to the determiner 16.

The operation of the replay mechanism of the video apparatus of the present invention having such a configuration will be described.

The antenna 1 receives the broadcast signal, generates an RF signal, and outputs the RF signal to the tuner 2 in the next stage. The tuner 2 has a tuner for demodulating an RF signal, a music selection circuit, or a CATV decoder inserted therein, and these circuits perform music selection and demodulation, and a video signal or an audio signal is output to the output of the tuner 2. The VTR 3 records / reproduces information desired by the user. These output signals are selected by the selector 4, and the route selection signals are directly displayed on the monitor 11 by the CRT driver 10 via the replay selection element 9.

On the other hand, the path is for realizing a zoom function, and specifically, the video signal is digitally converted by the A / D converter 5 and then stored in the memory 6 as video data. At this time, the information stored in the memory 6 is sequentially updated, and new information is always stored. Further, since the memory 6 is provided with the compression means, the original image can be stored for a longer time in proportion to the amount of compression.

The video signal read from the memory 6 is subjected to a predetermined block processing centering on the pixel of interest, and the block is classified by the class classification adaptive processor 7 as the enlarging / reducing processing means of the next stage. Classification processing is performed. The class classification adaptive processing in the present invention is performed by thinning-out or interpolation processing and is the same as the method previously applied by the applicant, and therefore the description thereof is omitted here.

Reduction / enlargement ratio (zoom ratio) for thinning or interpolation processing by the class classification adaptive processor 7
Is determined as follows. That is, a pulse signal oscillated at a predetermined frequency from the oscillator 12 is converted into infrared rays or ultrasonic waves by the transducer 13 and transmitted as a transmission wave to a viewer as a user. The transmitted wave transmitted from the transducer 13 is reflected by the user, and the reflected wave is received by the receiver 14 and shaped into a pulse waveform. The distance measuring device 15 instantaneously measures the time difference between the signal from the oscillator 12 and the output signal from the receiver 14, and measures the distance between the television receiver and the user from the transmission speed of infrared rays or ultrasonic waves. The control of these operations is performed based on a control signal from a control unit (not shown).

To explain the operation of the distance measuring means in more detail, the transducer 13 emits a pulse-shaped transmission wave by an ultrasonic transducer, for example. The frequency of the ultrasonic wave used here is usually about 30 kHz to 300 kHz in consideration of the propagation loss in the air, and the ultrasonic wave is generated and detected in consideration of the electromechanical coupling coefficient, temperature stability, etc. Electromagnetic (PZT) or the like is selected.

The reflected wave reflected by the user is received by the receiver 14. The received signal is subjected to limiter processing and amplification processing by a processing circuit built in the receiver 14, and is further counted based on the pulse generated by the oscillator 12, and the result is input to the distance measuring device 15 together with the signal of the oscillator 12. To be done. The distance detecting / measuring unit 15 digitally calculates the delay amount of the signal from the oscillator 12 and the output signal from the processor 23 to measure the distance to the user.

The distance information from the distance measuring device 15 is transmitted to the zoom ratio determining device 16, and the zoom ratio determining device 16 determines the zoom ratio when the change exceeds a preset threshold value (threshold level). Operates to change. Specifically, when zoom-up is selected by the zoom selection element 17 and the distance information becomes smaller than the threshold value as compared with the normal value, the zoom ratio is converted into a numerical value that is enlarged according to the distance. Is output. In this case, it is controlled so that the image is enlarged (zoomed up only) only when the user approaches.

On the other hand, as another case, the zoom selection element 1
When zoom up / down is selected by 7, and the distance information becomes larger (or smaller) than the threshold value as compared with the normal case, the zoom ratio is enlarged (or reduced) according to the distance to the user. Is converted to a numeric value and output. In such a case, control is always performed so as to zoom in or zoom out depending on the distance to the viewer. At this time, the apparent screen size of the television receiver does not change. Enlargement / reduction processing such as class classification adaptation processing is performed according to the zoom ratio thus determined.

After that, the D / A converter 8 carries out digital-to-analog conversion processing and inputs it to the replay selection element 9. The CRT driver 10 carries out processing such as R, G and B conversion and displays it on the monitor 11. It This allows
When the user encounters an image that he or she wants to see, the user can see the enlarged and displayed image only by approaching the monitor 11 without operating the operation keys such as the zoom replay button. The enlarged or reduced image can be played back in slow motion or repeatedly by adding a simple image processing program.

Embodiment 2 This embodiment is an example in which a distance measuring means is provided in a remote commander device in place of the distance measuring means provided in the video apparatus main body in the first embodiment. This will be described with reference to FIG. FIG. 2 is a block circuit diagram showing a second embodiment of the replay mechanism of the video device of the present invention.
Is a conceptual diagram thereof, and (b) is a block circuit diagram showing a main part thereof.

In FIG. 2, reference numeral 20 is a television receiver of the present invention, and reference numeral 30 is a remote commander device. The main configuration of the television receiver of the present invention includes a light receiving section 21 for receiving remote control signal / distance information, a receiver 22 for processing the received signal, a distance measuring device 15 as the distance measuring means, and these components. It is composed of a control unit (microcomputer) 23.

On the other hand, as shown in FIG. 2B, the main structure of the remote commander device 30 is roughly composed of a key 31 operated by a user, a transmission processor (microcomputer) 32, a driver 33, and a transmitter 34. To be done.

The operation of the replay mechanism of the video apparatus of the present invention having such a configuration will be described.

When the user performs a normal operation using the remote commander device 30, for example, the television receiver 2
When trying to switch the channel of 0, the channel number of the key 31 of the remote commander device 30 is pressed and the like. In response to this pressing operation, a predetermined control code is generated by the transmission processor 32, and the driver 33
Is modulated into a luminance signal via the transmitter and is emitted from the transmitter 34 as a remote control signal. The light receiving unit 21 of the television receiver 20 receives this remote control signal, the receiver 22 decodes the remote control signal, and the controller 23 processes it to convert the channel of the television receiver 20.

When the remote commander device 30 is operated to transmit the distance information to the television receiver 20, the position information (not shown) included in the key 31 is operated to transmit the distance information. To the television receiver 20. That is, the transmission processor 32 continuously oscillates the reference pulse and the continuous pulse, processes them by the driver, and transmits them as distance information from the transmitter 34. In the television receiver 20, this distance information is received by the light receiving section 21 and decoded by the receiver 22. Distance measuring device 1
In 5, the distance to the user operating the remote commander device 30 is detected by counting continuous pulses using the reference pulse as a trigger under the control of the control unit 23. It should be noted that the distance detection using the remote commander device is not limited to the above-described one, and it goes without saying that another configuration having the same function may be used. Further, the remote commander device may be provided with a zoom up / down button for direct operation.

In the above-described embodiment, the method using ultrasonic waves has been described as an example of the distance measuring means, but other configurations such as a photoelectric sensor using light and a distance sensor using microwaves are used. Of course it is okay. Further, the present invention is not limited to the above-mentioned embodiment, and various embodiments can be adopted. For example, although a television receiver is illustrated as an example of a video device in the above-described embodiments, a video device for displaying an image from a recording medium such as a VTR or a disk device on a display monitor such as a CRT, a projector device, a mobile device It can be applied to electronic devices with display function such as mobile phones and laptop computers. Further, it goes without saying that the present invention can be developed into various forms without being limited to the above embodiment.

[0035]

According to the replay mechanism of the first aspect of the invention described above, when a replay image is selected by the replay selecting means, the distance measuring means measures the distance between the body of the image apparatus and the viewer. Then, when the viewer changes the distance from the main body of the video apparatus, the enlargement / reduction processing unit zooms up or down the image to be restored at a predetermined zoom ratio and displays it on the display screen. Without having to approach or leave your monitor
A desired image can be viewed, and a replay mechanism of an image device that more reflects user needs can be realized.

Also, a picture-in display for displaying both the received radio wave or the image directly from the recording medium and the replay image on either the parent screen or the child screen, respectively.
By displaying with a multi-screen function such as picture-and-picture capable of multi-picture such as picture and two-screen, both can be viewed at the same time, and the additional function of the video device can be further enhanced.

According to the replay mechanism of the video device of the second invention, the video device main body and the remote commander device are provided,
Since the distance from the video device main body is measured by the remote commander device, the configuration of the video device main body can be simplified and the user's whereabouts can be accurately grasped.

[Brief description of drawings]

FIG. 1 is a block circuit diagram showing a first embodiment of a replay mechanism of a video device of the present invention.

FIG. 2 is a block circuit diagram showing a second embodiment of the replay mechanism of the video device of the present invention, (a) is a conceptual diagram thereof, and (b) is a block circuit diagram showing a main part thereof. .

[Explanation of symbols]

 1 Antenna 2 Tuner 3 VTR 4 Selector 5 A / D Converter 6 Memory 7 Class Classification Adaptive Processor 8 D / A Converter 9 Replay Selector 10 CRT Driver 11 Monitor 12 Oscillator 13 Transducer 14, 22 Receiver 15 Distance Measuring Device 16 Zoom ratio determiner 17 Zoom selection element 20 Television receiver 21 Light receiving part 23 Control part (microcomputer) 30 Remote commander device 31 Key 32 Transmission processor (microcomputer) 33 Driver 34 Transmitter

Claims (7)

[Claims] 1. A compression unit for an image from a received radio wave or a recording medium, a storage unit that sequentially updates and stores the image compressed by the compression unit, and a compressed image read from the storage unit is restored. And a distance measuring means for measuring the distance between the video apparatus main body and the viewer, and the distance measuring means when the viewer changes the distance to the video apparatus main body in the image restored by the demodulating section. The distance between the viewer and the viewer is measured, and the enlargement / reduction processing means for zooming up or down in response to the measurement result, and the image to be sent to the monitor are the received radio wave or the image directly from the recording medium, and the enlargement. A replay mechanism for a video device, comprising replay selection means for switching to either an image that has passed through reduction processing means. 2. The replay mechanism of the video apparatus according to claim 1, further comprising zoom selection means for selecting zoom-up or zoom-up / zoom-down of said enlargement / reduction processing means. 3. The replay mechanism of the video apparatus according to claim 1, wherein the enlargement / reduction processing unit performs a class classification adaptation process. 4. The replay mechanism for a video device according to claim 1, wherein the distance measuring unit is at least one of an ultrasonic sensor, a photoelectric sensor, and a microwave sensor. 5. A picture-in-picture function for displaying both the received radio wave or an image directly from a recording medium and an image passed through the enlargement / reduction processing unit on either a parent screen or a child screen, respectively. The replay mechanism of the video device according to claim 1, wherein the replay mechanism is provided. 6. A picture-and-picture function is provided for displaying on the two screens both the image received directly from the received radio wave or the recording medium and the image passed through the enlargement / reduction processing unit. The replay mechanism of the video device according to claim 1. 7. A video device main body and a remote commander device for remotely operating the video device main body, wherein the remote commander device comprises distance measuring means for measuring and transmitting a distance to the video device main body. Then, the video apparatus main body includes a compression unit for an image from a received radio wave or a recording medium, a storage unit for sequentially updating and storing the image compressed by the compression unit, and a compressed unit read from the storage unit. A demodulation unit that restores an image, a distance processing unit that processes distance information from the distance measurement unit, and an image that is restored by the demodulation unit, when the viewer changes the distance to the video device body, the distance The distance to the viewer is measured based on the distance information from the measuring means, and the enlargement / reduction processing means for zooming up or down in response to the measurement result and the image sent to the monitor. A replay mechanism for a video device, comprising replay selection means for switching an image between the received radio wave or an image directly from a recording medium and an image passed through the enlargement / reduction processing means.