JP2002367353A - Information reproducing device - Google Patents

Abstract

PROBLEM TO BE SOLVED: To efficiently set an initial operation mode at the time of supplying the power source of a reproducer. SOLUTION: This information reproducing device is capable of reading and reproducing the recorded data of a recording medium and is capable of supplying one of plural power sources such as an alternating current (AC), an AC-to- DC conversion (AC-DC), a battery and copes with a plurality of power source-ON keys. The device obtains a first judged result by judging (S402) the kind of a power source which is supplied by a plurality of power source supplying means and obtains a second judged result by judging (S403) which power source-ON means of a plurality of power source-ON means is being operated. Moreover, the device detects (S404, S407) the length of time in which each power source-ON key is being pushed. Then, initial operation modes of the device which are preliminarily set are switched over in accordance with the combination of the detected time, the first and second judged results.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an information reproducing apparatus for reproducing information from a recording medium, and controls an initial operation mode of the reproducing apparatus based on at least a power supply system, a power-on system, or both. The present invention relates to an information reproducing device.

[0002]

2. Description of the Related Art In recent years, with the improvement of optical pickup technology using a laser having a short wavelength, advancement of high-density recording technology, and advancement of data compression technology, the capacity of recording media such as optical disks has been increased, and recording on recording media can be performed. The amount of information has increased dramatically.

A CD (compact disk) from which information can be read by an apparatus using a laser beam having a wavelength of 780 nm.
Has a recording capacity of about 650 MB. On the other hand, a DVD (digital versatile disk) from which information can be read by a device using a laser beam having a wavelength of 650 nm has a recording capacity of about 4.7 GB. So DVD is CD
120mm in diameter of the same size as
Double the amount of digital information can be recorded.

According to the DVD-Video standard, about 2 hours of high-quality video data at an average transfer rate of 4 Mbps is 1 bit.
It is now possible to record on a single disc. In addition, it has become possible to provide a variety of contents that will not bore viewers, such as multi-angle reproduction and multi-story reproduction that take advantage of the large capacity.

[0005] Furthermore, a video having an aspect ratio of 16: 9 in consideration of viewing on a horizontal television is reproduced. On the other hand, a letter-box display for displaying a horizontal video on an ordinary television by shrinking up and down is used. Pan-scan display in which only a specific portion of an image is cut out and displayed can be realized, and the enjoyment has been further widened.

On the other hand, with the increase in memory capacity, devices for recording and reproducing video data and audio data in the memory have been developed. Since the amount of video data is large without compression, a video compression technology represented by MPEG4 is used. Also, by compressing audio data using an audio compression technique such as MP3 or AAC and storing it in a memory, for example, one data can be reduced to about 1/10 in capacity.

[0007]

At present, even in the case of DVD players, which are mainly of the stationary type, advances in circuit technology, reduction in the number of components, and miniaturization of devices are progressing, and the number of cases in which a user carries and uses a reproducing apparatus itself is increasing. Is expected. In addition, integration with a memory device by making a DVD player portable can be considered a matter of time.

However, on the other hand, the playback device can also play DVDs, not only playback of video CDs and compact discs, but also playback of data recorded on DVD-RAMs and CD-ROMs. This is a multi-purpose reproducing apparatus capable of reproducing data stored in a medium. Then, for the user,
There is a possibility that it is troublesome to specify which data is to be reproduced, and it is essential to improve usability.

Therefore, the present invention is to solve such a problem, and provides an information reproducing apparatus in which an initial operation mode of a reproducing apparatus is set as a default value so that a user can easily select a desired reproducing mode. It is intended to be.

[0010]

According to the present invention, there is provided an information reproducing apparatus comprising: a recording medium on which data including video and audio is recorded;
Means for reproducing data recorded on the recording medium;
C, DC, battery, etc., a plurality of power supply means, a plurality of power-on keys, a means for detecting the time during which the power-on key is pressed, a power supply means at power-on of the device, a power-on means, and a power-on key Means for arbitrarily switching the initial operation mode of the apparatus in accordance with a combination of time. Further, an arbitrary setting unit for the initial operation mode by the user may be provided. Also, a mode control means for controlling on / off of the power of a part or all of the circuit may be provided.

[0011]

Embodiments of the present invention will be described below with reference to the drawings.

FIG. 1 is a diagram showing a configuration of a reproducing apparatus having a reproducing control means capable of setting an initial operation mode at power-on according to an embodiment of the present invention.

In FIG. 1, reference numeral 1 denotes an optical disk as an information recording medium. The disk drive unit 2 drives the optical disk 1 and reads recorded data recorded on the optical disk 1 from the optical disk 1 to perform signal demodulation and error correction. Data output from the disk drive unit 2 is supplied to the system processor unit 3. When the playback data is DVD-video, the system processor unit 3 includes a video pack composed of video data, a sub-video pack composed of sub-video data, an audio pack composed of audio data, and control data. Control packs to be divided into four. The system processor unit 3 refers to the transfer time recorded in the data of each pack and the ID data indicating the type of data, and provides each data to each of the video decoder, the sub-picture decoder, and the audio decoder. Then, the control data is transferred to the memory unit 14 which can be referred to by the system CPU unit 11.

The system processor 3 has a function of simultaneously transferring a data string of reproduction management information required for disk reproduction to a memory 14 which can be referred to by the system CPU 11. If the reproduction data is data from a compact disc or MP3 data, the system processor 3 transfers the audio data to the audio decoder.

The video decoder section 4 decodes the video data transferred from the system processor section 3 and transfers the decoded data to the video processor section 6. The sub-picture decoder unit 5 decodes the sub-picture data transferred from the system processor unit 3 and transfers the decoded data to the video processor unit 6. The video processor unit 6 functions to multiplex the video data and the sub-video data and to superimpose and display on-screen display information based on an instruction from the system CPU unit 11. A frame memory unit 17 is connected to the video processor unit 6. The frame memory unit 17 can temporarily hold image data to be reproduced.

The LCD processor 18 functions to display the digital video signal output from the video processor section 6 on a liquid crystal display. LCD processor 18
Is supplied to the liquid crystal display unit 8.

The coder 8 decodes the audio data transferred from the system processor 3 and transfers the decoded data to a digital-to-analog (D / A) unit 9. The D / A unit 9 converts a digital signal into an analog signal and supplies the analog signal to the speaker unit 10.

The system CPU section 11 is a section for controlling the entire playback apparatus. The key input unit 15 receives an instruction request from a user.

The system CPU section 11 starts the operation of the reproducing apparatus in response to a user's input of a power-on key. At this time, the system CPU section 11 detects the power supply driving method, which power-on key has been pressed, and the time of pressing the key. Determine the initial operation mode.

The I / F section 13 is a section for controlling memory input / output. The memory unit 14 can temporarily store data under the control of the system CPU 13.

A panel display section 16 for displaying disk information and reproduction information is connected to the system CPU section 11.

Reference numeral 20 denotes an I / F section for connecting an external memory to the system processor section 3. External memory 21
Is a memory represented by, for example, a smart media or an SD card.

The power supply section 22 supplies power to the entire apparatus.
The system CPU 11 receives information from the power supply 22
Which power supply is currently being driven can be detected. 23 is a battery.

FIG. 2 shows an example of a portable reproducing apparatus having a plurality of power-on keys and a plurality of power supply driving methods. Reference numeral 301 denotes a playback apparatus main body, and 302 denotes a liquid crystal display unit. The playback device of this example has three power-on keys. The first is a power on key 303 of the main body, the second is a power on key 304 of the wireless remote controller, and the third is a power on key 305 of the wired remote controller.

Some DVD players currently on the market are powered on by a playback key as well as a power key. The playback device of this embodiment can be any key as long as it has a power-on function.

The reproducing apparatus of this embodiment has three power supply driving systems. The first is a driving system using a battery 303 (referred to as a battery system), and the second is an AC adapter 30
7 (hereinafter referred to as an AC-DC adapter method), and a third method using an AC 308 (A
C method).

FIG. 3 shows a power supply driving method (battery method,
This is an example in which the initial operation mode of the playback device is associated with a combination of an AC-DC adapter system, an AC system, a power-on key (main unit, wireless, wired remote controller), and a key pressing duration (short, long). The length of the key press duration can be set arbitrarily. For example, if the key is pressed for 1 second or longer, the key is pressed for a long time, and if it is shorter than 1 second, the key is pressed for a short time.

In the case of this example, four initial operation modes (mode 1 to mode 4) are provided depending on the combination of the LCD / backlight on / off, the initial reproduction mode, and the initial reproduction medium.
There is.

"Same as the immediately preceding medium" means that when a plurality of media are inserted into the apparatus as media on which MP3 data is recorded (for example, when a CD-ROM disc and a memory are inserted), Is played back, the disk is given priority, and if the memory is played back immediately before, the memory is given priority.

FIG. 4 is a flowchart showing the setting of the initial operation mode in FIG. Upon detecting that any one of the power keys has been pressed, the system CPU unit 11 starts determination according to the flowchart (step S40).
1). Next, in step S402, first, the power supply driving method is detected, and in the case of battery driving (battery method), the flow proceeds to step S403, and in the case of the AC-DC method or the AC method, the flow proceeds to step S404.

In step S403, it is detected which key has been pressed as the power-on key. If the power-on key has been pressed with the wired remote controller, the flow proceeds to step S407. If the power-on key has been pressed with the main unit or the wireless remote control, the flow proceeds to step S404. Step S40
3).

In step S404, the continuous pressing time of the key is detected.
In the case of a long time, the playback device is activated with the mode 2 of step S406 as an initial operation mode. If the power-on key of the wired remote control is pressed in step S403, the continuous pressing time of the key is detected in step S407, and if it is short, the mode 3 of step S408 is changed to
In the case of a long time, the reproducing apparatus is started with the mode 4 in step S409 as an initial operation mode.

As a result, the power supply is of the AC type,
When the power-on key of the main body is turned on and the pressing time is short, the playback device turns on the backlight of the LCD, sets the playback system to the DVD signal processing system, and sets the initial mode on the assumption that the medium is a disk.

When the power supply is of the AC-DC type and the power on key of the wireless or wired remote controller is turned on and the pressing time is long, the playback device turns off the backlight of the LCD, and the playback system processes MP3 data. system,
The initial mode is set on the assumption that the medium is the medium used immediately before, such as a disk or a memory.

When the power supply is of a battery type and the power-on key of the main body is turned on and the pressing time is short, the reproducing device turns on the backlight of the LCD, and the reproducing system is D-type.
The initial mode is set assuming that the VD signal processing system and the medium are disks.

When the power supply is of a battery type and the power on key of the wireless remote controller is turned on and the pressing time is long, the reproducing device turns off the backlight of the LCD, the reproducing system is the MP3 data processing system, and the medium is the disk. Alternatively, the initial mode is set on the assumption that the medium has been used immediately before, such as a memory.

When the power supply is of a battery type and the power on key of the wired remote controller is turned on and the pressing time is short, the reproducing device turns off the backlight of the LCD, the reproducing system is a CD data processing system, and the medium is a disk. Is set as the initial mode.

When the power supply is of a battery type and the power on key of the wired remote controller is turned on and the pressing time is long, the reproducing device turns off the backlight of the LCD, the reproducing system is an MP3 data processing system, and the medium is a disk. Alternatively, the initial mode is set on the assumption that the medium has been used immediately before, such as a memory.

That is, the above setting is based on the reason that when the power supply system and the power supply key are combined as described above, the probability that the initial mode shown in this table is used is high.

FIG. 5 shows an initial operation mode setting screen by the user. Reference numeral 501 denotes a setting screen. The power supply method, the power key to turn on,
There is key press time. Therefore, when the apparatus is operated and the operation mode is set to the initial operation mode, these power supply method selection units 502,
Power key selection unit 503 to be turned on, key press time selection unit 5
04 is displayed. The initial operation mode is set by the above combination. LCD / backlight on / off item 505 and initial playback mode item 5 as setting items
06, the initial reproduction medium item 507.

Here, the user selects a desired item on each display section by moving a highlight or selecting a button, and operating an enter key to set an initial mode.

As described above, the user can set a desired initial operation mode, so that a reproducing apparatus suitable for each user's use scene can be provided.

FIG. 6 shows an example of controlling the power supply to a part of the circuit of the apparatus for each operation mode. Reference numeral 601 denotes a reproducing apparatus; 602, a power supply circuit; and 603, a control circuit for controlling power supply, which is controlled by a CPU or the like. 604 is LC
D / backlight circuit, 605 is a video processing circuit, 606
Is an audio processing circuit, and 607 is a disk drive circuit.

When an operation is input, initialization is performed based on the information set in the table as described above. Therefore, this table is referred to by the power supply control circuit 603.

FIG. 7 is a table showing an example of power supply control of each circuit portion in each operation mode.

For example, when the mode 1 (see FIG. 3) is selected, power is supplied to all circuits. When the reproduction from the memory is performed in the mode 2 (see FIG. 3), the power of the LCD / backlight circuit, the video processing circuit, and the disk drive circuit is turned off. When playing back from a disk, the disk drive circuit is turned on.

When the reproduction in the mode 3 (see FIG. 3) is performed, the LCD / backlight circuit and the video processing circuit are turned off. When the reproduction from the memory is performed in the mode 4 (see FIG. 3), the power of the LCD / backlight circuit, the video processing circuit, and the disk drive circuit is turned off. When playing back from a disk, the disk drive circuit is turned on.

As described above, in each operation mode, power consumption can be reduced by controlling on / off of a power supply of an unnecessary circuit portion.

[0049]

As described above, according to the information reproducing apparatus of the present invention, it is possible to efficiently set the increasingly diversified initial operation mode of the reproducing apparatus, and the usability is improved.

[Brief description of the drawings]

FIG. 1 is a diagram showing a configuration of a playback apparatus including a playback control unit capable of setting an initial operation mode at power-on according to an embodiment of the present invention.

FIG. 2 is a diagram showing an example of a portable playback device having a plurality of power-on keys and a plurality of power supply driving methods in the playback device of the present invention.

FIG. 3 is a diagram showing an example in which an initial operation mode of the playback apparatus is associated with a combination of a power supply driving method, a power-on key, and a key press duration in the playback apparatus of the present invention.

FIG. 4 is a flowchart for setting an initial operation mode of the playback device of the present invention.

FIG. 5 is a diagram showing an example of an initial operation mode setting screen by a user of the present invention.

FIG. 6 is a diagram showing an example of an apparatus for controlling power supply to a part of a circuit for each operation mode according to the present invention.

FIG. 7 is a diagram for explaining an example of power supply control of each circuit portion in each operation mode of the device of the present invention.

[Explanation of symbols]

DESCRIPTION OF SYMBOLS 1 ... Optical disk, 2 ... Disk drive part, 3 ... System processor part, 4 ... Video decoder part, 5 ... Sub-picture decoder part, 6 ... Video processor part, 7 ... Liquid crystal display part, 8 ... Audio coder part, 9 ... D / A part, 1
0 ... Speaker unit, 11 ... System CPU unit, 12 ... 1,
3 ... Memory I / F section, 14 ... Memory section, 15 ... Key input section, 16 ... Panel display section, 17 ... Frame memory section, 1
8 LCD processor unit, 20 external memory I / F unit,
21 ... External memory.

Claims (6)

[Claims] 1. An information recording medium on which video and audio data are recorded, means for reading and reproducing data recorded on the recording medium, AC (AC), AC / DC conversion (AC-D)
C), a power supply means for supplying any one of a plurality of power supplies such as a battery, and when the power of the apparatus is turned on, which power supply is supplied by the plurality of power supply means is determined. Recording / reproducing apparatus, comprising means for switching a preset initial operation mode of the apparatus in accordance with the condition. 2. An information recording medium on which video and audio data is recorded, means for reading and reproducing data recorded on the recording medium, and a plurality of power-on means, wherein the plurality of power-on means are provided when the apparatus is powered on. Recording / reproducing apparatus, comprising: means for judging which power-on means of the power-on means is being operated, and switching a preset initial operation mode of the apparatus in accordance with the result of the judgment. . 3. An information recording medium on which video and audio data are recorded, means for reading and reproducing data recorded on the recording medium, alternating current (AC), alternating current direct current conversion (AC-D)
C), comprising a power supply means for supplying any one of a plurality of power supplies such as a battery, and a plurality of power-on means, and determining which power supply is supplied by the plurality of power supply means when the apparatus is powered on. Means for determining, a means for obtaining a first determination result, and means for determining which power-on means of the plurality of power-on means are being operated when the apparatus is powered on, and means for obtaining a second determination result; Means for switching a preset initial operation mode of the apparatus according to a combination of the first and second determination results. 4. An information recording medium on which video and audio data is recorded, means for reading and reproducing data recorded on the recording medium, alternating current (AC), alternating current direct current conversion (AC-D)
C), a power supply means for supplying any one of a plurality of power supplies such as a battery, and a plurality of power-on keys, a detection means for detecting a time during which each of the power-on keys is pressed, and the detection means Means for switching a preset initial operation mode of the apparatus according to time. 5. An information recording medium on which video and audio data are recorded, means for reading and reproducing data recorded on the recording medium, alternating current (AC), alternating current direct current conversion (AC-D)
C), a power supply means for supplying any one of a plurality of power supplies such as a battery, and a plurality of power-on keys, a detection means for detecting a time during which the respective power-on keys are pressed, and Which power supply is supplied by the plurality of power supply means is determined, and which of the plurality of power-on means is operated at the time of turning on the apparatus and the means for obtaining the first determination result. Means for obtaining a second determination result, and the initial operation mode of the apparatus preset according to a combination of the time detected by the detection means and the first and second determination results. A recording / reproducing apparatus comprising: means for switching; and means for arbitrarily selecting and setting an initial operation mode of the apparatus in advance in response to a user operation for the combination. 6. Turning on / off the power of a part or all of the circuit.
And a mode control unit for controlling turning off of the circuit. When an initial operation mode of the device is set, a power supply for a part or all of the circuit via the mode control unit according to the initial operation mode The recording / reproducing apparatus according to any one of claims 1 to 5, further comprising a unit for controlling on / off of the recording / reproducing apparatus.