JP2001285804A - Optical disk reproducing device - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide an optical disk reproducing device which allows a user to replace a screen saver with video prepared by him/herself. SOLUTION: A still picture or a moving image recorded by a digital data recording means 12 is read through an interface means 11 from the attachable/ detachable nonvolatile external digital data recording means 12 storing a still picture stream and it is reproduced by decoding by a decoding means, thereby the screen saver prepared by the user can be displayed.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a laser disk (registered trademark) player for reproducing a video signal and a video CD.
The present invention relates to an optical disc reproducing apparatus such as a player, a DVD player, and a DVD recorder.

[0002]

2. Description of the Related Art Conventionally, since it takes several seconds to several tens of seconds for an optical disk reproducing apparatus to start up after powering on and to reproduce video data from a mounted optical disk, a still image called a screen saver is displayed during that time. It is known to have the function of performing

FIG. 7 shows a configuration for realizing a function of outputting data recorded as a screen saver as a video in a conventional optical disc reproducing apparatus. 7, reference numeral 50 denotes a non-volatile memory for recording still image data displayed as a screen saver; 44, a demodulation / error correction processing unit for demodulating / error correcting data reproduced from an optical disk; and 46, a compressed audio / video signal. An audio / video signal demodulation unit 49 for demodulating the data is demodulated. A microcontroller 49 controls the operation of each processing unit of the optical disc reproducing apparatus according to the operation of the user. After the power is turned on, it takes time until data is read from the optical disk.
Reference numeral 9 denotes a nonvolatile memory 50 for the demodulation / error correction processing unit 44.
, And the read data is decoded by the audio / video signal demodulation unit 46 and output as a video signal. Then, when the read demodulation / error correction of the data from the optical disk is completed, the microcontroller 49 switches the video output to the data reproduced from the optical disk according to the information read from the disk.

[0004]

In a conventional optical disk reproducing apparatus, video data called a screen saver is
Only the video previously recorded in the memory by the manufacturer of the device could be displayed. On the other hand, the taste of users tends to respect originality and prefer original specifications that can be asserted rather than disciplined.

[0005] In view of the above-mentioned conventional problems, the present invention can replace a screen saver with an image created by a user himself, and can easily display an image displayed on a daily or weekly basis according to a change in mood. The object of the present invention is to provide an optical disk reproducing apparatus that functions so as to be able to change to an optical disk.

[0006]

According to another aspect of the present invention, there is provided an optical disc reproducing apparatus for connecting a non-volatile external digital data recording means storing a still picture stream to the digital data recording means. Interface means, decoding means for decoding and reproducing data recorded in the digital data recording means, and control means for controlling reproduction output of the still image stream, wherein the control means is provided on an optical disc. In the operation state in which the video is not reproduced, a still image stream is read from the external digital data recording means via the interface means, and a control is performed to output a reproduction signal decoded by the decoding means. is there.

[0007] Thus, a photograph taken by a digital camera, an image obtained on the Internet, a computer graphic created by a personal computer, or an image processed by image editing software can be used as an original screen saver.

[0008]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS The present invention according to claim 1 of the present invention provides a nonvolatile external digital data recording means for storing a still picture stream, an interface means for connecting the digital data recording means, Decoding means for decoding and reproducing data recorded on the digital data recording means; and control means for controlling reproduction output of the still image stream, wherein the control means reproduces a video recorded on an optical disc. In a non-operating state, a still image stream is read from the external digital data recording means via the interface means, and control is performed so as to output a reproduction signal decoded by the decoding means. From when the system starts up until video data can be reproduced from the loaded optical disc. In this state, or when the playback function is stopped even though the optical disk is loaded, the user can use another device to display the still image data recorded in the removable external digital storage means. Has the effect of being able to.

[0010] According to a second aspect of the present invention, there is provided a nonvolatile digital data recording means capable of storing a still image stream,
Digital data transfer means for taking in a still image stream from an external device and writing it to the digital data recording means; decoding means for decoding and reproducing data recorded in the digital data recording means; and reproduction of the still image stream Control means for controlling output, wherein the control means reproduces a video recorded on an optical disc by recording a still image stream from an external device in advance on the digital data recording means by the digital data transfer means. In a non-operating state, the system is configured to read a still image stream from the digital data recording unit and to control to output a reproduction signal decoded by the decoding unit. Plays video data from the loaded optical disk The state of the subject until or optical disk playback function be mounted when the stop state, without the need for external digital storage means detachable,
The digital data transfer means has an effect that the still image data recorded in advance in the digital data storage means inside the apparatus can be displayed from a device such as a personal computer.

According to a third aspect of the present invention, there is provided a nonvolatile digital data recording means capable of storing a still image stream,
Encoding means for converting a video signal into a data format recordable on digital data recording means for recording; decoding means for decoding and reproducing data recorded on the digital data recording means; reproduction output of the still image stream Control means for controlling, wherein the control means converts the still image stream read from the optical disk in advance into a data format recordable on the digital data recording means by the encoding means, and records the data format on the digital data recording means. By this, when the video signal recorded on the optical disk is not reproduced, the still image stream is read from the digital data recording means and controlled to output a reproduced signal decoded by the decoding means in an operation state. And after turning on the power When the system starts up and the video data can be reproduced from the loaded optical disc, or when the playback function is stopped even if the optical disc is loaded, encoding is possible without the need for a removable external digital storage means. This means that the still image data read out from the optical disk by the means and recorded in advance in the digital data storage means in the apparatus can be displayed.

According to a fourth aspect of the present invention, in the optical disc reproducing apparatus according to the first to third aspects, an audio signal is recorded in the digital data recording means simultaneously with a still image.
Alternatively, a moving image is recorded in place of a still image, and the decoding means decodes the sound or the moving image to output a reproduction signal. When the audio data is attached to the still image data to be read out from the digital data storage means and reproduced when the video data can be reproduced from the time when the playback function is stopped even if the optical disk is mounted, It has the effect that audio can be reproduced, and if moving image data is recorded, a moving image can also be displayed. An embodiment of the present invention will be described below with reference to FIGS.

(Embodiment 1) FIG. 1 is a block diagram of an optical disk reproducing apparatus according to a first embodiment of the present invention. In FIG. 1, reference numeral 1 denotes a moving image, a still image, and various kinds of audio data. An optical disk, 2 a pickup for optically reading a signal recorded on the optical disk, 3 a high-frequency signal waveform shaping unit for shaping the waveform of the read high-frequency signal,
Reference numeral 4 denotes a demodulation / error correction processing unit that demodulates the signal after waveform shaping and performs error correction, 5 denotes a demodulation / error correction memory temporarily used when performing demodulation and error correction, and 6 denotes an error-corrected signal. An audio / video signal demodulation unit for separating an audio stream and a video stream from each other and demodulating each of them;
7 is a video signal as a final output, 8 is an audio signal as a final output, 9 is control means for determining a key input by a user and controlling the operation of the entire optical disc reproducing apparatus, and 12 is a detachable nonvolatile storing a still image stream. The external digital data recording means 11 is an interface means for connecting the digital data recording means, and the decoding means 10 decodes and reproduces data recorded in the digital data recording means.

The operation of the optical disk reproducing apparatus configured as described above will be described below with reference to the flowchart of FIG. 2 showing the operation of the control means 9 of the optical disk reproducing apparatus.

First, when the power is turned on, the control means 9 initializes the apparatus in step S1. Next, in step S2, it is confirmed whether or not the still image data instructed to be displayed is recorded in the external digital data recording means 12. If the information is not recorded or there is no display instruction, the process proceeds to various operation processing steps by a user operation in step S4. However, if the data to be displayed has been recorded, the process proceeds to step S3, and the external digital data recording
2. A still image stream is read from the
To perform decoding processing of the still image stream, and instruct to output a still image as the video output 7 via the audio / video signal demodulation unit 6. In the operation mode for reproducing the data of the optical disk in step S4, the optical disk 1 on which various data of moving images, still images, and sounds are recorded, optically reads a signal recorded on the optical disk by the pickup 2, and outputs a high-frequency signal. The waveform of the high-frequency signal read by the waveform shaping unit 3 is shaped, and the demodulated / error-corrected processing unit 4 demodulates the signal after the waveform shaping using the demodulation / error correction memory 5 to perform error correction. The audio stream and the video stream are separated from the error-corrected signal by the signal demodulation unit 6 and are demodulated respectively.
Is output. During operation, step S5
If it is determined that the disc is not being played back in step S2, the flow returns to step S2 to determine whether to read out a still image stream from the external digital data recording means 12 and display it.

As described above, according to the present embodiment, the still image stream is read from the external digital data recording means connected to the interface means when the video recorded on the optical disk is not being reproduced, and the decoding means is provided. Control to output a playback signal decoded by a digital camera, so that a photograph taken by a digital camera, an image obtained on the Internet, a computer graphic created by a personal computer, or an image processed by image editing software is recorded in an external digital data recording means. By connecting to the interface means, it can be used as an original screen saver. In addition, since the data is easily rewritten, it is possible to provide an optical disk reproducing device that functions so that images displayed daily or weekly can be changed depending on the mood.

(Embodiment 2) FIG. 3 is a block diagram of an optical disk reproducing apparatus according to a second embodiment of the present invention. In FIG. , A non-volatile digital data recording unit storing a still image stream, a digital data transfer unit 24 for taking in a still image stream from another device such as a personal computer, and a digital data transfer unit 22. Decoding means for decoding and reproducing data recorded in the recording means is provided.

With respect to the optical disk reproducing apparatus configured as described above, the control means 21 of the optical disk reproducing apparatus shown in FIG.
The operation will be described below with reference to a flowchart showing the operation.

First, after initialization in step S6, it is confirmed in step S7 whether or not still image data for which display is instructed is recorded in the digital data recording means 23. If it is not recorded or there is no display instruction, the process proceeds to various operation processing steps by a user operation in step S9. However, if the data to be displayed has been recorded, the process proceeds to step S8, and an instruction is given to read / decode / display the still image data. If it is determined in step S10 that the user has instructed to read the still image data from the external device, the process proceeds to step S11.
Then, an instruction is issued to read a still image stream from an external device, for example, a personal computer 25 via the digital data transfer means 24 and to record it in the digital data storage means 23. If it is determined in step S12 that the disc is not being reproduced during operation, the process proceeds to step S12.
Then, the process returns to step 7 to determine whether or not the still image stream is read from the digital data recording unit 23 and displayed.

As described above, according to the present embodiment, the still image stream is read from the digital data recording means and the reproduced signal decoded by the decoding means is output when the video recorded on the optical disk is not being reproduced. Control can be performed, and still image data can be read from an external device to the digital data storage means by the digital data transfer means. Therefore, it is possible to provide an optical disc reproducing apparatus in which data can be easily rewritten when used as an original screen saver. Become.

(Embodiment 3) FIG. 5 is a block diagram of an optical disk reproducing apparatus according to a third embodiment of the present invention. In FIG. 32, a non-volatile digital data recording unit storing a still image stream; 33, an encoding unit for taking in a still image stream from a mounted optical disc;
Reference numeral 4 denotes decoding means for decoding and reproducing data recorded in the digital data recording means.

With respect to the optical disk reproducing apparatus configured as described above, the control means 31 of the optical disk reproducing apparatus shown in FIG.
The operation will be described below with reference to a flowchart showing the operation.

First, in step S14, it is checked whether or not the still image data whose display is instructed is recorded in the digital data recording means 32. If not recorded or there is no display instruction, the flow proceeds to various operation processing steps by a user operation in step S16. However, if the data to be displayed has been recorded, the flow shifts to step S15 to instruct read / decode / display of still image data. If it is determined in step S17 that the user has instructed to read the still image data from the loaded optical disk, the process proceeds to step S18, where the still image stream is read from the optical disk 1 via the encoding unit 33, and the digital data storage unit is read. 32
To be recorded. During operation, step S1
If it is determined in step 9 that the optical disc 1 is not being played,
Returning to step S14, the process shifts to determining whether or not the still image stream is read from the digital data recording means 32 and displayed.

As described above, according to the present embodiment, the still picture stream is read from the digital data recording means 32 and decoded by the decoding means 34 when the video data recorded on the optical disc 1 is not being reproduced. A signal can be controlled to be output, and still image data can be read from the optical disk to the digital data storage means 32 by the encoding means 33. Therefore, it is possible to provide an optical disk reproducing apparatus which can easily rewrite data when used as an original screen saver. Becomes

(Embodiment 4) Next, the operation of the optical disk reproducing apparatus according to the fourth embodiment will be described below.

In the optical disk reproducing apparatus according to the first to third embodiments, the external digital data recording means 1
2. The digital data recording means 23 and 32 record an audio signal simultaneously with a still picture, or record a moving picture instead of a still picture, and the decoding means 10, 22 and 3
4 is also capable of decoding audio or video, and is configured to display a still image or video with audio as a screen saver. In addition, the digital data transfer means 24 and the encoding means 33 are adapted to cope with the encoding of audio or video, and the digital data recording means 23 and 32 can be rewritten.

As described above, according to this embodiment, when the video recorded on the optical disc is not being reproduced, the still picture stream or the moving picture with sound is read from the digital data recording means and decoded by the decoding means. Digital video data from the external device by the digital data transfer means, or from the optical disk by the encoding means to the digital data storage means. It is possible to provide an optical disk reproducing apparatus that can use attached still images or moving images.

The external digital data recording means 12,
As the data to be recorded in the digital data recording units 23 and 32, a plurality of still images may be sequentially displayed like a slide, sound or sound effect may be sounded at the same time, or a moving image may be displayed. Further, a configuration in which data can be easily rewritten may be changed so that images displayed daily or weekly can be changed depending on the mood.

[0028]

As described above, according to the present invention, a photograph taken by a digital camera, an image obtained on the Internet, a computer graphic created by a personal computer, or an image processed by image editing software is used as an original screen saver. This has the advantageous effect that it can be performed.

[Brief description of the drawings]

FIG. 1 is a block diagram of an optical disk reproducing device according to a first embodiment of the present invention;

FIG. 2 is a flowchart showing the operation of the control means.

FIG. 3 is a block diagram of an optical disc reproducing apparatus according to a second embodiment of the present invention;

FIG. 4 is a flowchart showing the operation of the control means.

FIG. 5 is a block diagram of an optical disc reproducing apparatus according to a third embodiment of the present invention.

FIG. 6 is a flowchart showing the operation of the control means.

FIG. 7 is a block diagram of a conventional optical disc reproducing apparatus.

[Explanation of symbols]

 Reference Signs List 1 optical disk 2 pickup 3 high-frequency signal waveform shaping section 4 demodulation / error correction processing section 5 demodulation / error correction memory 6 audio / video signal demodulation section 7 video output 8 audio output 9 control means 10 decoding means 11 interface means 12 external digital data Recording means 21 Control means 22 Decoding means 23 Digital data recording means 24 Digital data transfer means 25 Personal computer 31 Control means 32 Digital data recording means 33 Encoding means 34 Decoding means

Claims (4)

[Claims] 1. A nonvolatile external digital data recording means for storing a still image stream, an interface means for connecting the digital data recording means, and decoding and reproducing data recorded in the digital data recording means. Decoding means, and control means for controlling the reproduction output of the still image stream, wherein the control means performs the operation from the external digital data recording means in an operation state in which the video recorded on the optical disc is not reproduced. An optical disc reproducing apparatus characterized in that it is configured to read a still image stream via an interface means and to control output of a reproduction signal decoded by the decoding means. 2. A non-volatile digital data recording unit capable of storing a still image stream, a digital data transfer unit for taking in a still image stream from an external device and writing the digital image recording unit to the digital data recording unit, and the digital data recording unit Decoding means for decoding and reproducing data recorded in the digital camera, and control means for controlling reproduction and output of the still image stream. The control means previously transmits a still image stream from an external device by the digital data transfer means. By recording in the digital data recording means, a still image stream is read from the digital data recording means in an operation state in which the video recorded on the optical disc is not reproduced, and a reproduction signal decoded by the decoding means is read. It is configured to control to output That the optical disc playback apparatus. 3. A non-volatile digital data recording means capable of storing a still image stream, an encoding means for converting a video signal into a data format recordable by the digital data recording means and recording the digital signal, and a digital data recording means. Decoding means for decoding and reproducing recorded data; and control means for controlling reproduction and output of the still image stream. The control means converts a still image stream read in advance from an optical disc into the digital data by the encoding means. By converting the data into a data format that can be recorded on the recording means and recording the digital data on the digital data recording means, a still image stream can be transmitted from the digital data recording means in an operation state in which the video recorded on the optical disc is not reproduced. Read and decode with the decoding means Optical disk reproducing apparatus characterized by being configured to control so as to output a reproduction signal de. 4. The optical disc reproducing apparatus according to claim 1, wherein the digital data recording means records an audio signal simultaneously with a still image, or records a moving image instead of a still image. An optical disc reproducing apparatus, wherein the decoding means decodes an audio or a moving image and outputs a reproduced signal.