JPH10340517A - Portable computer - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a device capable of independently performing a signal reproducing listening operation by a headphone in a portable computer incorporating a disk player. SOLUTION: When the plug of a headphone is inserted into a headphone jack 6, power obtained from a battery 1 by a power supply control circuit 9 is supplied to a disk player part 4, a reproducing circuit 5 for the headphone and an operation switching part 7 and thus a reproducing listening operation by the headphone is carried out irrespective of the switching operation of a power switch 3 provided for supplying power to a computer circuit part 2.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

[0001] 1. Field of the Invention [0002] The present invention relates to a portable computer having a built-in disc player capable of reproducing a disc on which data signals or audio signals are recorded.

[0002]

2. Description of the Related Art Computers called personal computers have recently become widespread. Among such personal computers, there are portable computers called notebook computers which can be carried and used. The type computer has a battery used as an operating power supply built into the main body.

In addition, a disc player called a CD-ROM on which computer software and the like are recorded and a disc player on which an audio signal such as music is recorded are incorporated in the portable computer. There is something.

[0004]

A portable computer with a built-in disc player is used in a portable manner. However, when playing or listening to music or the like while going out, it is necessary to put the computer into an operating state. is there. Therefore, there is a problem that not only the current consumption of the battery is increased but also the operability is poor.

An object of the present invention is to provide a portable computer which solves such a problem.

[0006]

According to the present invention, there is provided a computer which is switched when the computer is used, supplies a power supply from a battery to the computer circuit section, and reproduces a data signal recorded on a disk. A disc player unit whose operation is controlled by a signal from an operation switch unit that switches the operation of the disc player during a reproduction operation of a disc on which an audio signal is recorded and whose operation is controlled by a signal from the computer circuit unit, An audio signal to be reproduced from the disc player unit is input, and a headphone reproducing circuit incorporating an amplifier circuit for amplifying the signal is provided. A signal amplified by the headphone reproducing circuit is applied to the headphone. Head where the plug is inserted A phone jack, a power control switch which is switched when a headphone plug is inserted into the headphone jack, and a power control switch which is controlled by a switching operation of the power control switch and which is in a state where the plug is inserted into the headphone jack. It comprises a power supply control circuit for supplying power from the battery to the disc player section, the operation switch section, and the headphone playback circuit regardless of the opening / closing operation of the power switch.

[0007]

1 is a block circuit diagram showing an embodiment of a computer according to the present invention. In FIG. 1, reference numeral 1 denotes a battery housed inside a cabinet body constituting a portable computer. It is. Reference numeral 2 denotes a computer circuit unit in which a circuit element for controlling each operation of the computer, a hard disk device, a liquid crystal display unit, and the like are incorporated. Reference numeral 3 denotes a power switch that is closed when the computer is used. It has the function of supplying power to the computer circuit unit 2.

Reference numeral 4 denotes a disk player unit for reproducing a disk on which data signals such as computer software are recorded and a disk on which audio signals such as music are recorded. The operation of the disk player unit is controlled by the computer circuit unit 2. And the computer circuit unit 2
To output a signal obtained from the disk. Numeral 5 is an operation state when a reproducing operation of a disk on which an audio signal is recorded is performed, and an amplifier circuit for amplifying the audio signal output from the disk player unit is incorporated.

Reference numeral 6 denotes a headphone jack into which a headphone plug is inserted. The headphone jack 6 is connected to a first signal terminal a, a second signal terminal b to which left and right channel signals output from the headphone reproducing circuit 5 are applied, and is grounded. Ground terminal c. Reference numeral 7 denotes an operation switch unit which is in an operable state when an operation of reproducing and listening to an audio signal is performed by headphones, and is configured to be operated when the operation of the disc player unit 4 is switched.

Reference numeral 8 denotes a power control switch that is switched when a headphone plug is inserted into the headphone jack 6, and is configured to be closed when the plug is inserted. Reference numeral 9 denotes a power supply control circuit for controlling the operation of supplying the power obtained from the battery 1 to the disk player section 4, the headphone reproducing circuit 5, and the operation switch section 7, and includes the computer circuit section 2 and the power control circuit. The power supply operation is controlled by the switch 8.

Reference numeral 10 denotes a muting circuit for preventing, ie, muting, the output operation of the signal output from the headphone reproducing circuit 5 when in the operating state. The operation is controlled by a control signal output from a switching control signal output terminal 2A. 1
Reference numeral 1 denotes a state in which the power supply operation from the power supply control circuit 9 to the disk player unit 4 and the like is cut off when the headphone plug is inserted into the headphone jack 6, that is, when the power control switch 8 is closed. The switch is a power-return switch that is pressed and closed, and has an operation of restarting the power supply operation from the power supply control circuit 9 to the disc player unit 4 and the like.

Although the present invention is constructed as described above, its operation will now be described. First, a case where the operation as a computer is performed will be described. When the headphone plug is not inserted into the headphone jack 6, the power control switch 8 is open.

In this state, when the power switch 3 is closed, the power from the battery 1 is supplied to the computer circuit unit 2 via the power switch 3, and the computer circuit unit 2 is activated. When the computer circuit section 2 is in an operating state, a control operation based on various software recorded in a ROM or a hard disk is performed, and the operation content is displayed on a liquid crystal display section. When the computer circuit unit 2 controls the disc player unit 4, a control signal output from a power control signal output terminal 2 B of the computer circuit unit 2 is applied to a power supply control circuit 9, Power from the battery 1 is supplied to the disc player unit 4 through the supply control circuit 9.

In this manner, the disc player unit 4
When power is supplied to the disc player unit 4, the disc player unit 4 is ready to perform operations such as reproduction, and each operation is performed based on a control signal output from the computer circuit unit 2. Therefore, the operation of reading the data signal of the computer software or the like recorded on the CD-ROM disk is performed, and various operations based on the read signal can be performed by the computer circuit unit 2. When the operation of the disk player section 4 becomes unnecessary, the control signal output from the power supply control signal output terminal 2B of the computer circuit section 2 disappears, and the disk player section 4 from the power supply control circuit 9 is removed.
The power supply to the power supply is cut off. Further, after performing an operation for terminating the operation of the computer circuit unit 2, the computer circuit unit 2 can be made inoperative by opening the power switch 3.

As described above, the operation of the computer circuit section 2 and the operation of the disk player section 4 by the control operation of the computer circuit section 2 are performed. Next, the signal of music or the like recorded on the disk by the headphones. The operation in the case of playing and listening to the music will be described.

When a headphone plug is inserted into the headphone jack 6, a signal terminal and a ground terminal formed on the plug are connected to a first signal terminal a, a second signal terminal b, and a ground terminal provided on the headphone jack 6. c
And the power supply control switch 8 is closed. When the power supply control switch 8 is closed, the control operation by the power supply control circuit 9 is performed, and the power obtained from the battery 1 is supplied to the disc player unit 4 and the headphone playback circuit via the power supply control circuit 9. 5 and the operation switch unit 7.

In this state, when the operation switch for reproduction provided on the operation switch section 7 is operated, the disk player section 4 enters a state of performing a reproduction operation, and the audio signal of music or the like recorded on the disk is reproduced. The read / reproduce operation is started. The disc player section 4
The reproduced audio signal is input to the headphone reproducing circuit 5, amplified by an amplifier circuit provided in the headphone reproducing circuit 5, and then output to the headphone jack 6. Therefore, it is possible to perform an operation of listening to an audio signal reproduced from the disk by the headphones whose plug is inserted into the headphone jack 6.

Although the reproduction operation is performed as described above, various operations can be performed by operating the music selection operation switch and the fast-forward operation switch provided in the operation switch section 7. Further, during a reproduction operation or the like, the disc player can be switched to a stop state by operating a stop operation switch. Then, when the reproduction operation of the signal recorded on the disc is completed,
The disc player is configured to automatically return to a stopped state.

As described above, the operation of reproducing and listening to the signal recorded on the disk by the headphones is performed. However, when the operation such as the operation switching is not performed for a predetermined time after the disk player returns to the stop state, Then, an operation of shutting off the power supplied to the disk player unit 4, the headphone reproducing circuit 5, and the operation switch unit 7 via the power supply control circuit 9 is performed. Therefore, after the reproduction operation of the disc player is completed, useless consumption of the battery 1 can be prevented even if the headphone jack 6 is left with the plug of the headphone inserted.

By the operation described above, the disk player unit 4, the headphone reproducing circuit 5, and the operation switch unit 7
In order to restart the reproduction operation when the power supply operation to the power supply is interrupted, the power return switch 11
May be pressed. When the power supply return switch 11 is pressed and closed, the power supply operation from the power supply control circuit 9 to the disk player section 4, the headphone reproduction circuit 5, and the operation switch section 7 is restarted. Therefore, the above-described reproduction operation of the disc player can be performed again.

As described above, the playback and listening operation of the audio signal by the headphones is performed. When the power switch 3 is closed while the playback and listening operation is being performed, the above-described operation is performed. Muting control signal output terminal 2 provided in computer circuit unit 2
A outputs a control signal to the muting circuit 10. When such a control signal is applied to the muting circuit 10, the muting circuit 10 operates for a predetermined period of time, and blocks the output operation of the signal output from the headphone reproducing circuit 5. As a result, a noise signal or the like generated when the operation of the computer circuit section 2 is started is not applied to the headphones, and the listener does not feel uncomfortable.

Further, the operation of the computer circuit section 2 and the operation of reproducing and listening to the signal recorded on the disk by the headphones are performed in parallel. A control signal is output to the muting circuit 10 from a muting control signal output terminal 2A provided in the section 2. Accordingly, also in this case, the muting operation by the muting circuit 10 is performed, and a noise signal or the like generated when the operation of the computer circuit unit 2 is stopped is not applied to the headphones, which gives a listener discomfort. Never.

As described above, each operation of the computer according to the present invention is performed. However, when the headphone plug is disconnected from the headphone jack 6, the power control switch 8 is opened. Even when the return switch 11 is pressed and closed, the power supply operation from the power supply control circuit 9 to the disc player unit 4 and the like is not performed.

The battery 1 is consumed by the operation of the computer circuit unit 2 for the computer and the playback and listening operation by the headphones, but the voltage of the battery 1 cannot operate the computer circuit unit 2 normally. Even when the voltage drops, the reproducing operation by the headphones can be performed. That is, the current required for the operation of reproducing and listening to the signal by the disc player unit 4, the headphone reproducing circuit 5 and the operation switch unit 7 is much smaller than the current required for the operation of the computer circuit unit 2, so that the battery Even if the voltage of 1 decreases to a value at which the operation of the computer circuit unit 2 cannot be performed, the reproduction / listening operation can be performed without any trouble.

In this embodiment, the power return switch 1
Although 1 is provided outside the operation switch section 7, it may be provided inside the operation switch section 7. When the power switch 3 is opened and closed while the headphone is playing and listening, the muting circuit 1
Although the muting operation by 0 is performed,
When the switch 3 is opened and closed, a reset operation of the disc player unit 4 can be performed, and the computer circuit unit 2 controls the disc player unit 4 by performing such an operation. The switching operation to the state in which the operation is performed can be promptly performed.

Further, by providing a disk player comprising the disk player section 4, the headphone reproducing circuit 5 and the muting circuit 10 so as to be detachable from the main body of the computer, the serviceability in the event of a failure can be improved. In addition, by using a configuration in which an auxiliary battery case is mounted on the mounting portion of the disc player provided in the computer main body, the operating time of the computer can be extended. Further, by providing an operation switch section on the main body of the disc player detachably provided with respect to the main body of the computer, for example, by providing an operation switch section on the front face, it is possible to easily perform a playback / listening operation using headphones of the disc player. Can be done.

[0027]

According to the present invention, when a headphone jack is inserted into a headphone jack in a portable computer having a built-in disc player,
By supplying power from a battery to the disc player section, the headphone playback circuit, and the operation switch section, it is possible to perform the operation of listening to the playback signal by the headphones, that is, to play the disc without putting the computer into an operating state. Since the playback and listening operation of the recorded signal can be performed, the operation is very convenient and the current consumption can be suppressed.

Further, according to the present invention, the control operation of the disc player unit from the computer circuit unit can be performed regardless of the insertion or non-insertion of the headphone plug into the headphone jack. It has the advantage that it can be done.

According to the present invention, even when the voltage of the battery drops to a voltage at which the operation of the computer circuit section cannot be performed normally, the disc can be played and listened to. This is very convenient because the reproducing operation can be performed even when the computer cannot be used.

Further, according to the present invention, the computer operation of the computer circuit unit and the reproduction / listening operation of the audio signal by the disk player unit can be performed in parallel, so that the computer operation can be performed while listening to music. Can be done.

Further, according to the present invention, since the switching operation by the operation switch is enabled only when the headphone plug is inserted into the headphone jack, erroneous operation when using the computer can be prevented.

The present invention relates to a method for controlling the power supply operation to a computer circuit in a state in which a headphone is performing a playback / listening operation and performing a switching operation of a power switch provided in the headphone. Since the output signal of the reproducing circuit is muted for a predetermined time, a noise signal is not applied to the headphones, and the listener does not feel uncomfortable.

Also, the present invention provides a disk player section and a headphone playback section when the operation switch section is not operated for a predetermined time after the headphone plug is inserted into the headphone jack, or when the disk playback operation is completed. Since the power supply operation to the circuit is stopped, useless consumption of the battery can be prevented. Further, in the present invention, when the power supply is cut off, the power supply return switch for restarting the power supply operation from the power supply control circuit is provided, so that the headphone plug is still inserted in the headphone jack. Thus, the reproducing operation can be started again, and the operability is excellent.

Further, according to the present invention, since the disk player is provided detachably with respect to the main body of the computer, it is possible to improve the serviceability at the time of failure and to mount the disk player provided on the main body of the computer. The use time of the computer can be prolonged by arranging the auxiliary battery case in the section. Further, according to the present invention, since the operation switch section is provided on the main body of the disc player which is detachably provided to the main body of the computer, it is possible to easily perform the playback / listening operation using the headphones of the disc player. Has advantages.

[Brief description of the drawings]

FIG. 1 is a block circuit diagram showing an embodiment of a computer according to the present invention.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 Battery 2 Computer circuit part 3 Power switch 4 Disc player part 5 Headphone playback circuit 6 Headphone jack 7 Operation switch part 8 Power control switch 9 Power supply control circuit 11 Power return switch

Claims (11)

[Claims] 1. A portable computer in which a disc player capable of reproducing a disc on which a data signal or an audio signal is recorded can be switched when the computer is used, and the operation power supply from a battery is supplied to the computer. A power switch for supplying to the circuit section, and a disc player for reproducing the disc on which the audio signal is recorded while the operation is controlled by the signal from the computer circuit section during the reproducing operation of the disc on which the data signal is recorded. For a disk player unit whose operation is controlled by a signal from an operation switch unit for performing operation switching, and an audio signal which is reproduced from the disk player unit is input and an amplifier circuit for amplifying the signal is incorporated in a headphone. A playback circuit, a headphone jack into which a signal amplified by the headphone playback circuit is applied and a headphone plug is inserted,
A power control switch that is switched when a headphone plug is inserted into the headphone jack; and a power control switch that is controlled by a switching operation of the power control switch and opens and closes when the plug is inserted into the headphone jack. A power supply control circuit for supplying power from the battery to the disc player unit, the operation switch unit, and the headphone playback circuit irrespective of the operation, and a computer circuit when the headphone plug is inserted into the headphone jack. A portable computer characterized in that an operation of reproducing and listening to an audio signal reproduced from a disk player unit is enabled regardless of an operation of the unit. 2. The portable computer according to claim 1, wherein a control operation of the disk player unit by the computer circuit unit is enabled regardless of whether a headphone plug is inserted into or not inserted into the headphone jack. 3. The disk player unit is capable of reproducing and listening to an audio signal even if the voltage of the battery drops to a voltage at which the computer circuit unit cannot operate normally. A portable computer according to claim 1. 4. The portable computer according to claim 1, wherein the computer operation of the computer circuit unit and the audio signal reproduction / listening operation of the disk player unit can be performed in parallel. 5. The portable computer according to claim 1, wherein a switching operation by an operation switch unit is enabled only when a headphone plug is inserted into a headphone jack. 6. An output signal of a headphone playback circuit is muted for a predetermined time when a power switch is switched while a headphone is listening to an audio signal. The portable computer according to claim 1. 7. A power supply operation from a power supply control circuit is stopped when the operation switch section is not operated for a predetermined time after a headphone plug is inserted into a headphone jack. Item 4. A portable computer according to item 1. 8. The portable computer according to claim 1, wherein the power supply operation from the power supply control circuit is stopped when the reproduction operation of the disk is completed. 9. The portable computer according to claim 7, further comprising a power return switch for resuming a power supply operation from a power supply control circuit. 10. The portable computer according to claim 1, wherein the disk player is detachable from a main body of the computer. 11. The portable computer according to claim 10, wherein the operation switch unit is provided on the disc player.