JP2006179084A - Optical disk apparatus - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide an optical disk apparatus in which operation for an apparatus can be performed even when a key is continued to be pressed due to multiple depression of a key, mechanical fault, dust in a key signal line, or the like, also cause of an error about key operation can be recognized. <P>SOLUTION: When a key input signal is inputted from an operation part, the present key state is not a specific state, and the key is depressed, a depressing time of the same key is measured. When the same key is depressed in the prescribed time, a key state is shifted to the specific state. Thereby, even when a key is continued to be depressed due to multiple depression of a key, mechanical fault, dust in a key signal line, or the like, operation for the apparatus can be performed. Until continuous depression of the same key is recognized, warning indicating that the key remains depressed is displayed, also the key is specified. <P>COPYRIGHT: (C)2006,JPO&NCIPI

Description

The present invention relates to an optical disc apparatus for reproducing information from or recording / reproducing information on an optical disc.

Conventionally, an optical disk apparatus has a system controller for controlling the entire apparatus, a power key for giving an instruction to turn on or off the apparatus power, a playback key for giving a playback instruction, and a playback stop. It has a stop key for instructing and other various operation keys, and an operation unit provided on the front panel of the apparatus main body. The operation unit includes light receiving means for receiving an optical signal indicating an operation command from a remote controller having similar operation keys. The light receiving means converts the optical signal into an electrical signal and inputs the command signal to the system controller. It also has functions.
JP 2003-15779 A Japanese Patent Laid-Open No. 7-13696 JP-A-53-136184 JP-A-62-1314

By the way, in such a conventional optical disk device, in order to operate the device, the user presses a key on the operation unit or a key on the remote controller. Does not operate, but if the key B is released while the key A is depressed, the key A may be effective at this time. For example, a mechanical failure or a key signal line When the key A continues to be pressed due to dust or the like, there is a problem that the original key operation cannot be performed, for example, other keys become ineffective.

In the prior art of Patent Document 1, when it is detected that the touch-on state of the touch panel has continued for a certain period of time, it is determined that the operation is not an effective operation by the user and the auto power-off function is activated. It is not a device but a portable electronic device.

In the prior art of Patent Document 2, when a touch is connected to the same position on the touch panel, an error is input even if the touch is connected at the same position by using a timer or the like to distinguish whether the user's intention is just a touch. This is an input device that can prevent deterioration of the screen due to repeated touching of options, and is not related to the operation unit or the remote controller of the optical disk device.

The prior art of Patent Document 3 is a normal signal only when the number of transmissions within a certain time on the transmission side is determined in advance, an input signal having the number of transmissions is received on the receiver side, and no input signal is received thereafter. As the input signal is detected, the key is continuously pressed due to multiple key presses, mechanical failure, or dust on the key signal line. An error may be displayed when an input signal having a transmission number is received and an input signal is subsequently received, but the user does not know why the error occurred.

The prior art of Patent Document 4 is an operation for performing an operation corresponding to a signal for displaying an operation content with respect to two types of key operations such as an operation of touching each key and a pressing operation with respect to a plurality of keys. By making it possible to generate signals, the operator can operate the operation keys while looking at the screen. However, multiple key presses, mechanical failures, and dust on the key signal lines No measures are taken against the situation where the key is kept pressed due to the above.

The present invention has been made in order to solve the above-described problems, and is in a state where the key is continuously pressed due to multiple pressing of the key, mechanical failure, dust on the key signal line, or the like. It is an object of the present invention to provide an optical disc apparatus that can perform an operation as a device even when the error occurs, and can know what reason an error relating to a key operation is caused.

To achieve the above object, a first aspect of the present invention is a key reception processing means for receiving and processing a key input signal from an operation unit or a remote controller, and a key for determining whether or not the current key state is a special state. A state determination unit, a key depression determination unit that determines whether or not a key has been depressed based on a result of reception processing by the key reception processing unit when the current key state is not a special state, and a key depression A time measuring means for measuring the time of pressing the same key;
Based on the measured time, a predetermined time key depressing determination unit for determining whether or not the same key has been pressed for a predetermined time, and a special state transition for shifting the key state to a special state when the same key is pressed for a predetermined time And a key release determining means for determining whether or not the same key has been released when the current key state is a special state, and a normal state return for returning the key state to the normal state when the same key is released. Means, a warning display means for displaying a warning indicating that the key is kept pressed until the release of the same key is recognized, and the key that is kept pressed is displayed. There is provided an optical disc apparatus comprising a system controller having key specifying means for specifying the key.

In this configuration, when there is a key input signal from the operation unit or the remote controller, the reception processing is performed by the key reception processing means. Then, the key state determination unit determines whether or not the current key state is a special state. When the current key state is not a special state and the key depression is determined by the key depression determination means, the time of the same key depression is measured by the time measurement means. When it is determined by the key depression determination means for a predetermined time that the same key has been depressed for a predetermined time, the key state is shifted to the special state by the special state transition means. When the current key state is the special state, it is determined by the key release determining means whether or not the same key has been released, and when the same key is released, the key state is returned to the normal state by the normal state returning means. . A warning indicating that the key is kept pressed is displayed on the display device by the warning display means until the release of the same key can be recognized. When displaying the pressed key, the key is specified by the key specifying means.

According to this configuration, even if the key continues to be pressed due to multiple key presses, mechanical failure, dust on the key signal line, etc., there is no problem by returning to normal processing. The device can be operated, and the reason why the error related to the key operation can be displayed on the display device. Therefore, it is possible to know the details of the error and to recognize the release of the same key. Up to this point, the user can be warned to indicate that the key has been pressed, and it is also possible to confirm which key has been pressed. Therefore, it is convenient for the user.

According to the invention of claim 2, in an optical disc apparatus for reproducing information from or recording / reproducing information on an optical disc, when the key depression from the operation unit or the remote controller is recognized, the time during which the key is kept depressed is measured. An optical disc apparatus is provided that includes a system controller that is regarded as a special state in which no key is pressed when pressed for a predetermined time or longer.

In this configuration, if the key press from the operation unit or the remote control is recognized, the time during which the key is continuously pressed is measured, and if the key is pressed for a predetermined time or longer, no special key is pressed. Considered a state.

According to this configuration, if the key is kept pressed for a predetermined time or longer, it is considered that no key is pressed. Thereafter, the operation can be performed without any problem by returning to the normal process. For the user, the usability is improved.

According to a third aspect of the present invention, in the second aspect of the invention, when the system controller recognizes that the key has been depressed from the operation unit or the remote controller, the system controller measures the time during which the key is kept depressed and presses the key for a predetermined time or more. If the operation is continued, the key reception processing means for receiving the key input signal from the operation unit or the remote control and the current key state is a special state as means for determining that no key is pressed. A key state determining unit for determining whether or not a key has been pressed based on a result of reception processing by the key reception processing unit when the current key state is not a special state, There is a time measuring means for measuring the time of pressing the same key when the key is pressed, and the same key is pressed for a predetermined time based on the measured time. A predetermined time key depressing determination means for determining whether or not and a special state transition means for shifting the key state to a special state when the same key is depressed for a predetermined time, This can be regarded as a special state in which no key is pressed.

According to a fourth aspect of the present invention, in the second aspect of the present invention, the system controller includes a key release determining means for determining whether or not the same key has been released when the current key state is a special state, Since there is a normal state returning means for returning the key state to the normal state when the key is released, if the same key can be confirmed to be released, the key can be returned to the initial key state and the key must be used. Is possible.

According to a fifth aspect of the present invention, in the second aspect of the present invention, the system controller displays a warning indicating that a key is kept pressed until the release of the same key can be recognized. With the means, it is possible to prompt the user to warn that the key is kept pressed until the release of the same key can be recognized.

In the invention of claim 6, in the invention of claim 5, since the system controller has key specifying means for specifying the key when displaying the pressed key, the user can select which key. It becomes possible to confirm whether or not the button is kept pressed.

As described above, according to the present invention, the key reception processing unit that receives and processes the key input signal from the operation unit or the remote controller, the key state determination unit that determines whether or not the current key state is a special state, When the current key state is not a special state, a key depression determination unit that determines whether or not a key has been depressed based on a result of reception processing by the key reception processing unit, and a depression of the same key when a key depression occurs A time measuring means for measuring time, a predetermined time key pressing determination means for determining whether or not the same key has been pressed for a predetermined time based on the measured time, and a key state when the same key has been pressed for a predetermined time Special state transition means to transition to the special state, and the key release determination to determine whether or not the same key was released when the current key state is the special state The normal state returning means for returning the key state to the normal state when the same key is released, and that the key remains on the display device until the release of the same key is recognized. Since the system controller has a warning display means for displaying a warning and a key specifying means for specifying the key when the pressed key is displayed, it is possible to perform multiple key presses and mechanical Even if the key continues to be pressed due to a major failure or dust on the key signal line, it can be operated as a device without any problems by returning to normal processing. The reason why the error is related to the error can be displayed on the display device, so that the error content can be known and the release of the same key can be recognized. Up, it can prompt a warning indicating that remain a key is pressed on the user, and further, it is also possible to confirm whether the remains of which key was pressed. Therefore, it is convenient for the user.

Further, according to the present invention, if the key press from the operation unit or the remote control can be recognized,
When the key is kept pressed for more than a predetermined time because the system controller considers a special state where no key is pressed if the time that the key has been pressed is measured. Is regarded as a state in which no key is pressed, and after that, by returning to the normal processing, it is possible to perform the operation as a device without any problem, and the usability is improved for the user.

Hereinafter, embodiments of the present invention will be described with reference to the accompanying drawings. FIG. 1 is a block diagram showing a configuration of an optical disc apparatus according to an embodiment of the present invention.

The optical disk apparatus includes a spindle motor 5 that rotates the optical disk 1, an optical pickup 2 that emits laser light for reproducing information recorded on the optical disk 1 and receives reflected light from the optical disk 1, and the optical pickup. Thread 3 for moving 2 in the radial direction of optical disc 1, and spindle motor 5 and thread 3 are driven in accordance with instructions from system controller 22, and an objective lens (not shown) built in optical pickup 2 is moved. Thus, a servo control unit 4 is provided for performing control to move the focal position of the laser beam in the vertical direction and the horizontal direction with respect to the recording surface of the optical disc 1.

The optical disc apparatus also includes an RF amplifier 6 that amplifies an RF signal that is a read signal from the optical pickup 2 during reproduction of the optical disc 1, and an optical disc 1 that converts the RF signal output from the RF amplifier 6 into digital data. A digital signal processing unit 8 that stores data generated by performing signal demodulation processing and error correction processing according to the data format of the RAM 7 in the RAM 7, and a data stream output from the digital signal processing unit 8 in response to an instruction from the system controller 22 Is provided with a stream separator 9 for separating audio data, sub-picture data, and video data.

The optical disc apparatus also stores an audio decoder 11 that receives the audio data output from the stream separator 9 and performs a predetermined decoding process, and temporarily stores the data to perform the decoding process in the audio decoder 11. The RAM 10, the sub-picture decoder 13 that inputs the sub-picture data output from the stream separation unit 9 and performs a predetermined decoding process, and temporarily stores the data to perform the decoding process by the sub-picture decoder 13 A RAM 12, a video decoder 15 that receives the video data output from the stream separation unit 9 and performs a predetermined decoding process, and a RAM 14 that temporarily stores data to perform the decoding process in the video decoder 15. It has.

The optical disk apparatus also combines a video processor 17 that synthesizes data output from the video decoder 15 and data output from the sub-picture decoder 13 in accordance with an instruction from the system controller 22, and output from the video processor 17. A video encoder 18 that converts the synthesized data into a video signal for display and displays an image on the display device 20, and a D / D converter that converts the data output from the audio decoder 11 into an analog audio signal and supplies the analog audio signal to the speaker 19, for example. A converter 16 is provided.

The optical disc apparatus also has a power key for giving an instruction to turn on or off the apparatus power to the system controller 22, a reproduction key for giving a reproduction instruction, a stop key for instructing a reproduction stop, and other various types. An operation unit 21 having an operation key and provided on the front panel of the apparatus main body and the system controller 22 for controlling the entire apparatus are provided. The operation unit 21 includes light receiving means (not shown) that receives an optical signal indicating an operation command from a remote controller (remote controller) 26. The light receiving means converts the optical signal into an electrical signal and instructs the system controller 22 Input the signal. The remote control 26 has various operation keys similar to those of the operation unit 21. Note that the operation unit 21 may be one in which a plurality of keys are arranged on the front panel, or one in which the front panel is a touch panel having a plurality of touch keys.

In addition, this optical disc apparatus has a flash ROM 23 for storing programs and data for controlling each component of the apparatus and for controlling the entire apparatus, and a system that performs arithmetic processing according to the programs and data in the flash ROM 23. A CPU 24 for controlling the controller 22 and a RAM 2 for temporarily storing data necessary for the arithmetic processing of the CPU 24
7 and a display unit 25 which is a display unit on the main body side for displaying the operation content from the operation unit 21 or the remote controller 26.

The system controller 22 includes a key reception processing unit 221 that receives and processes a key input signal from the operation unit 21 or the remote controller 26, and whether or not the current key state is a special state, as components characteristic of the present embodiment. A key state determination unit 222 for determining whether or not a key has been pressed based on a result of reception processing by the key reception processing unit 221 when the current key state is not a special state, Time measuring means 224 for measuring the time for pressing the same key when the key is pressed.

Further, the system controller 22 determines whether or not the same key has been pressed for a predetermined time based on the measured time, and determines whether or not the key has been pressed for a predetermined time. Special state shifting means 22 for shifting to a special state
6 and a key press release determining means 227 for determining whether or not the same key is released when the current key state is a special state, and a normal state for returning the key state to the normal state when the same key is released. The display device 20 until the return means 228 and the release of the same key can be recognized.
A warning display means 229 for displaying a warning indicating that the key is still pressed, and a key specifying means 230 for specifying the key when displaying the key that has been pressed.
And have.

FIG. 2 is a flowchart for explaining key input processing in the optical disc apparatus of the present embodiment. The key input process will be described with reference to this flowchart. In the present embodiment, an optical disc apparatus that can only perform reproduction will be described, but the key input process for an optical disc apparatus that can perform recording / reproduction is the same.

When the user depresses, for example, a certain key A of the operation unit 21, the system controller 22
The key reception processing means 221 receives the key input signal from the operation unit 21 and recognizes the operation content of the key A (step S1). At this time, the key state determination unit 222 of the system controller 22 determines whether or not the current key state is a special state. When the key state is not the special state but the normal state, the key depression determination unit 223 depresses the key A. (Step S5).

When the key A is depressed, the time measuring means 224 of the system controller 22
The key press-down time, for example, the key A press-down time is measured, and the key press-down determination means 225 determines that the key A remains in the pressed-down state when the press-down time of, for example, 5 minutes elapses ( Step S7). Next, the special state transition means 226 of the system controller 22 shifts the key state to the special state (step S8). That is, the key A is brought into a state where no key is pressed, and the depression of other keys is validated. However,
Key A is disabled.

In step S8, the warning display means 229 of the system controller 22 displays a warning error message indicating that the key is kept pressed on the display device 20 by the OSD process. Further, the key specifying unit 230 of the system controller 22 specifies the key that has been pressed (for example, key A) by the key signal from the key matrix circuit and displays it on the display device 20.

Thereafter, the process proceeds from step S1 to step S2. In step S2, since the current state is determined to be a special state, the key release determination unit 2 of the system controller 22 is determined.
27 determines whether or not the same key (key A) has been released, and when there is a release, the normal state returning means 228 returns the key state to the normal state (step S4). In step S4, the error display displayed on the display device 20 is deleted.

When it is determined in step S3 that the same key has not been released, step S5
If it is determined in step S7 that the key has not been depressed, the process returns to step S1 if it is determined in step S7 that the same key has not been depressed for 5 minutes.

By the way, in an optical disc apparatus such as a DVD player, there is a skip key whose function is changed by long-pressing a key, and even if playback is started while the skip key is held down for a long time, an operation such as fast-forwarding is performed arbitrarily. There are things that move to. In such a case, by displaying on the display device that the skip key is kept pressed for a long time, the user can know an error related to the key operation.

Long-press keys that change functions (such as skip keys) and non-changeable keys (power key,
It is conceivable to perform key input processing separately for a reproduction key, a stop key, an open / close key, etc., but the processing becomes complicated. In the key input process, when a key press time is measured and a predetermined time has elapsed, it is determined that the key remains pressed down.
If the predetermined time is set longer than the key pressing time (the pressing time until the function changes) when the key is pressed for a long time, multiple key presses on the operation unit, mechanical failure, key signal line Since it is possible to detect a state in which the key is continuously pressed due to dust or the like, there is no problem in executing the key input process.

As described above, according to the present embodiment, the key is continuously pressed due to multiple pressing of the key of the operation unit provided on the front panel of the apparatus main body, mechanical failure, dust on the key signal line, or the like. Even if it is in such a state, it can operate as a device without problems by returning to normal processing, and it can display on the display device what reason the error related to key operation is, You can also know the error contents. In addition, the user can be warned that the key has been pressed until the same key release is recognized, and further confirm which key has been pressed. You can also. Therefore, it is convenient for the user.

Note that the key input process described above can also be applied to the remote control, but in the case of the remote control, the optical signal may be blocked by an obstacle before reaching the light receiving unit of the apparatus body. Because there is, it is difficult to apply this key input process. If there is a condition that the remote control is always directed to the light receiving unit of the apparatus main body, the same effect as the key input process for the operation unit can be obtained by applying this key input process.

1 is a block diagram showing a configuration of an optical disc device according to an embodiment of the present invention. It is a flowchart for demonstrating a key input process in the said embodiment.

Explanation of symbols

DESCRIPTION OF SYMBOLS 1 Optical disk 20 Display apparatus 21 Operation part 22 System controller 26 Remote control 221 Key reception process means 222 Key state determination means 223 Key depression determination means 224 Time measurement means 225 Predetermined time key depression determination means 226 Special state transition means 227 Key release determination means 228 Normal state return means 229 Warning display means 230 Key identification means

Claims (6)

In an optical disc apparatus for reproducing information or recording / reproducing information on an optical disc, key reception processing means for receiving and processing a key input signal from an operation unit or a remote controller, and whether or not the current key state is a special state A key state determining unit for determining, a key pressing determining unit for determining whether or not a key has been pressed based on a result of reception processing by the key receiving processing unit when the current key state is not a special state, and a key pressing A time measuring means for measuring the time of pressing the same key when there is, a key pressing determining means for determining whether or not the same key has been pressed for a predetermined time based on the measured time, and the measured Special state transition means for shifting the key state to the special state when the same key is pressed for a predetermined time based on the time, and the current key state A key release determining means for determining whether or not the same key has been released when the key is in a special state, a normal state returning means for returning the key state to the normal state when the same key is released, and pressing the same key Warning display means for displaying a warning indicating that the key is kept pressed until the release is recognized, and specifying the key when displaying the pressed key An optical disc apparatus comprising a system controller having key specifying means. In an optical disc apparatus for reproducing information from or recording / reproducing information on an optical disc, when the key depression from the operation unit or the remote controller is recognized, the time during which the key is kept depressed is measured and kept pressed for a predetermined time or more. An optical disc apparatus comprising: a system controller that assumes a special state in which no key is pressed when pressed. When the system controller recognizes the key press from the operation unit or the remote controller, the system controller measures the time that the key is continuously pressed, and when the key is pressed for a predetermined time or longer,
Key reception processing means for receiving and processing a key input signal from the operation unit or remote control as a means for assuming that no key is pressed, and a key state for determining whether or not the current key state is a special state Same as the judgment means and the key depression judgment means for judging whether or not the key has been depressed based on the result of the reception processing by the key reception processing means when the current key state is not a special state. There are a time measuring means for measuring the key pressing time, a key pressing determining means for determining whether or not the same key has been pressed for a predetermined time based on the measured time, and pressing the same key for a predetermined time. 3. The optical disk apparatus according to claim 2, further comprising special state transition means for shifting the key state to the special state. The system controller has a key release determining means for determining whether or not the same key has been released when the current key state is a special state, and a normal state for returning the key state to a normal state when the same key is released. The optical disk apparatus according to claim 2, further comprising a state returning unit. 3. The system controller according to claim 2, wherein the system controller includes warning display means for displaying a warning indicating that the key is kept pressed until the release of the same key can be recognized. Optical disk device. 6. The optical disc apparatus according to claim 5, wherein the system controller includes key specifying means for specifying the key when displaying the key that is being pressed.

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