JP2003005868A - Recording and reproducing device - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a recording and reproducing device that can operate a recording and reproducing part operable with power fed from a computer through an interface even when no power is supplied from an external power supply. SOLUTION: A CPU 13 performs connection setting with a computer (PC) 1 each time disconnection/reconnection from/to the external power supply 8 is performed, a power circuit 9 feeds power only to a slot 3 for a semiconductor memory card being the recording and reproducing part operable with the power fed from a PC connecting part 10 and the CPU 13, and does not feed power to a Floppy(R) disk drive 4.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a recording / reproducing device in which a recording / reproducing device for a semiconductor memory card and a recording / reproducing device such as a disc-shaped recording medium are integrated.

[0002]

2. Description of the Related Art As a conventional recording / reproducing apparatus, Japanese Patent Application Laid-Open No.
As described in JP-A 1-222537, there is known a recording / reproducing apparatus having a semiconductor memory card slot and a recording / reproducing drive such as a floppy disk drive as one unit. In this device, a semiconductor memory card slot and a recording / reproducing drive for other recording media are integrated to copy and transfer information between the semiconductor memory card and other recording media and between each recording media and computer. be able to.

FIG. 5 is an external view of such a conventional recording / reproducing apparatus. In FIG. 5, 2 is a recording / reproducing apparatus main body,
3 is a slot for a semiconductor memory card, 4 is a floppy disk drive, 5 is a power connector for supplying electric power from the outside, 7 is an interface connector for connecting a computer and the recording / reproducing apparatus 2, and 15 is a semiconductor memory card. Is.

Normally, a USB (Universal Se)
When a semiconductor memory card slot is used as a peripheral device of a computer by using an interface such as a Rial Bus) capable of supplying power from the computer, the semiconductor memory card slot can be sufficiently driven by the power from the interface.

However, the above-mentioned conventional recording / reproducing apparatus does not have a function of enabling the semiconductor memory card slot to be used by using only the electric power from the interface when it is not connected to the external power source.

[0006]

DISCLOSURE OF THE INVENTION The present invention solves the above-mentioned problems of the prior art. The recording / reproducing section which can be driven only by the power supplied from the interface is used even when the power is not supplied from the outside. It is an object of the present invention to provide a recording / reproducing device capable of performing the above.

[0007]

[Means for Solving the Problems] Claim 1 in the present invention
The recording / reproducing apparatus described has a plurality of recording / reproducing units capable of recording and reproducing data on different types of recording media, and for supplying power from an interface capable of supplying power from a computer and an external power source. In a recording / reproducing apparatus having a power connector for a computer and functioning as a peripheral device of a computer, when the power connector is not connected to an external power source, a recording / reproducing unit that can be driven only by the power supplied from the interface is used. A power supply unit for supplying electric power to the internal circuit for enabling the power supply connector, and when the power supply connector is not connected to an external power supply, causes the computer to recognize the recording / reproducing unit that can be driven only by the power supplied from the interface, If the power connector is connected to an external power source, connect all recording / playback units. And a control unit to recognize the computer, the control unit and performing the resetting of the connection to the computer when the connector the power is turned external power supply and a non-connected state or connected state.

A recording / reproducing apparatus according to a second aspect of the present invention is the recording / reproducing apparatus according to the first aspect, wherein the control unit determines whether or not the power source connector is connected to an external power source. Is detected by monitoring the input voltage from.

A recording / reproducing apparatus according to a third aspect of the present invention is the recording / reproducing apparatus according to the first or second aspect,
When only the power supply connector is disconnected in a state where the interface and the power supply connector are connected, the control unit interrupts a recognition routine and requests the computer to re-recognize. To do.

A recording / reproducing apparatus according to a fourth aspect of the present invention is the recording / reproducing apparatus according to any one of the first to third aspects, wherein the power supply connector is in a state in which only the interface is connected. When connected to an external power source, the control unit interrupts a recognition routine and requests the computer to re-recognize.

A recording / reproducing apparatus according to a fifth aspect of the present invention has a plurality of recording / reproducing sections capable of recording and reproducing data on different types of recording media, and an interface capable of supplying power from a computer. In a recording / reproducing apparatus that has a power supply connector for supplying power from an external power supply and functions as a peripheral device of a computer, the power supplied from the interface when the power supply connector is not connected to the external power supply. If the power supply unit that supplies electric power to the internal circuit for enabling the recording / reproducing unit that can be driven only by the power supply connector and the power supply connector is not connected to an external power supply, the power can be driven only by the power supplied from the interface. Let the computer recognize the recording / playback unit, and connect the power connector to an external power source. In the case where it is present, a control unit that causes a computer to recognize all the recording and reproducing units, and a reset unit that initializes the control unit when the power supply connector is in a non-connection state or a connection state with an external power source, The control unit resets the connection with the computer when the reset unit returns to the initial state.

A recording / reproducing apparatus according to a sixth aspect of the present invention is the recording / reproducing apparatus according to the fifth aspect, wherein whether or not the power source connector is connected to an external power source is mechanically detected. And

A recording / reproducing apparatus according to a seventh aspect of the present invention is the recording / reproducing apparatus according to the fifth or sixth aspect,
When only the power supply connector is disconnected in a state where the interface and the power supply connector are connected, the control unit, which has been initialized by the reset unit, requests the computer to re-recognize. Is characterized by.

The recording / reproducing apparatus according to claim 8 of the present invention is the recording / reproducing apparatus according to any one of claims 5 to 7, wherein the power supply connector is connected in a state where only the interface is connected. If it is, the control unit that is in the initial state by the reset unit,
It is characterized by requesting the computer to re-recognize.

A recording / reproducing apparatus according to a ninth aspect of the present invention is the recording / reproducing apparatus according to any one of the first to eighth aspects, in which a semiconductor memory is used as a recording / reproducing unit which can be driven by electric power supplied from the interface. It is characterized by having a slot for a card.

A recording / reproducing apparatus according to a tenth aspect of the present invention is the recording / reproducing apparatus according to any one of the first to ninth aspects, and is a disk-shaped recording / reproducing unit which cannot be driven by the power supplied from the interface. A recording / reproducing drive for a recording medium is provided.

According to the present invention, regarding the recording / reproducing section which can be driven only by the electric power supplied from the interface,
It can be used even when it is not supplied with power from the outside, and can be used as an external memory reader / writer of the computer.

[0018]

BEST MODE FOR CARRYING OUT THE INVENTION Embodiments of the present invention will be described below with reference to the drawings. (First Embodiment) A recording / reproducing apparatus according to the first embodiment will be described below with reference to the drawings. FIG. 1 is a connection diagram of the recording / reproducing apparatus according to the first embodiment, and FIG. 2 is a configuration diagram thereof. 1 and 2, the recording / reproducing apparatus 2 incorporates a semiconductor memory card slot 3 and a floppy disk drive 4 as recording / reproducing units for recording media of different types. The power supply connector 5 is a connector for supplying electric power from the external power supply 8 to the inside of the recording / reproducing apparatus 2, and the interface connector 7 connects the recording / reproducing apparatus 2 to the computer (PC) 1 using the interface cable 6. It is a connector for doing.

The recording / reproducing apparatus 2 uses a USB as an interface with the computer 1, and transfers information with the computer 1 via the interface cable 6, the interface connector 5, and the PC connecting section 10. In this device, a semiconductor memory card slot and a recording / reproducing drive (floppy disk drive, etc.) for other recording media are integrated, and information is exchanged between the semiconductor memory card and other recording media and between each recording media and computer. Can be copied and transferred.

The recording / reproducing apparatus 2 operates as a peripheral device of the computer 1. The operation will be described below with reference to FIGS. When the recording / reproducing apparatus 2 is connected to the computer 1 by the interface cable 6 while the power is supplied from the external power source 8, the computer 1 recognizes the recording / reproducing apparatus 2 as a semiconductor memory card slot and a floppy disk drive. The recording / reproducing device 2 is a USB as an interface with the computer 1.
In this state, power is supplied to the power supply circuit (power supply unit) 9 not only from the external power supply 8 but also from the computer 1 in this state. At this time, the power supply circuit 9 supplies the power from the external power supply 8 to the floppy disk drive 4 via the third power conversion unit 9c, and the power from the external power supply 8 and the power from the PC connection unit 10 (interface supply power). 11) is set to the same potential in the power converters 9a and 9b so that the semiconductor memory card slot 3 and the CP are
It is supplied to the internal circuit such as U13 (see FIG. 3).

When the external power source 8 is removed from the power source connector 5 from this state, as shown in FIG. 3, the power supply to the floppy disk drive 4 via the third power conversion section 9c is stopped, and the second power source is removed. Only power is supplied from the PC connection unit 10 to the semiconductor memory card slot 3 and internal circuits such as the CPU 13 via the power conversion unit 9b. When the CPU 13 detects that the power supply from the external power supply 8 has been cut off by the external power supply detection terminal 12 for monitoring the input voltage from the power supply connector 5, only the semiconductor memory card slot 3 is attached to the computer 1. Interrupt the recognition routine.
Specifically, the program is returned to the routine for setting the connection with the computer 1. By resetting the connection with the computer 1 in this way, only the semiconductor memory card slot 3 which is a recording / reproducing unit operable with the power supplied from the interface, that is, the power supplied from the computer 1 To recognize. Next, with respect to the computer 1, the semiconductor memory card slot 3
When only the external power source 8 is recognized, that is, when the external power source 8 is not connected to the power source connector 5, the external power source 8
Is connected to the power supply connector 5, the power supply circuit 9 supplies electric power from the external power supply 8 to the floppy disk drive 4 via the third power conversion unit 9c as shown in FIG. Power from power source 8 and PC connection 10
Power (interface supply power 11) is supplied to the internal circuits such as the semiconductor memory card slot 3 and the CPU 13 with the same potential in the power converters 9a and 9b. CP
When the U13 detects that power is supplied from the external power supply 8 at the external power supply detection terminal 12, it causes the computer 1 to interrupt a routine for recognizing the semiconductor memory card slot 3 and the floppy disk drive 4. Specifically, the program is returned to the routine for setting the connection with the computer 1 again. As a result, the computer 1 recognizes the recording / reproducing apparatus 2 as an external drive for the semiconductor memory card and the floppy disk.

(Second Embodiment) A recording / reproducing apparatus according to the second embodiment will be described below with reference to the drawings. FIG. 4 is a configuration diagram of the recording / reproducing apparatus according to the second embodiment. The same components as those of the first embodiment described above are designated by the same reference numerals and the description thereof will be omitted.

In this device, the reset circuit (reset portion) 14 generates a signal for resetting the CPU 13, that is, for resetting the CPU 13, and the power supply connector 5 is plugged into the connector as is already known. It is a connector that has a detection pin that mechanically detects that something is happening. Similar to the first embodiment, also in this device, a semiconductor memory card slot and a recording / reproducing drive (a floppy disk drive or the like) for another recording medium are integrated, and between the semiconductor memory card and another recording medium, and respectively. It is possible to copy and transfer information between the recording medium and the computer.

A computer (P
The operation of C) 1 as a peripheral device will be described with reference to FIG. When the recording / reproducing apparatus 2 is connected to the computer 1 by the interface cable 6 while the power is supplied from the external power source 8, the computer 1 recognizes the recording / reproducing apparatus 2 as a semiconductor memory card slot and a floppy disk drive. When the external power supply 8 is removed from the power supply connector 5 from this state, the reset circuit 14 generates a reset signal by the detection pin of the power supply connector 5, and resets the CPU 13 to the initial state. At this time, the power supply circuit 9 is the CPU 1 which has returned to the initial state.
3, the power supplied from the PC connection unit 10 is supplied to the CPU 13 and the internal circuit, and the floppy disk drive 4 is not supplied with power. The recording / reproducing apparatus 2 resets the connection with the computer 1 by the CPU 13, and the semiconductor memory card slot 3 which is a recording / reproducing unit operable with the power supplied from the interface, that is, the power supplied from the computer 1.
Only let computer 1 recognize. Next, only the semiconductor memory card slot 3 is recognized by the computer 1, that is, the external power source 8 is the power connector 5
When the external power supply 8 is connected to the power supply connector 5 in a state in which the reset circuit 14 is not connected to the power supply connector 5, the reset circuit 14 generates a reset signal by the detection pin of the power supply connector 5, and C
The PU 13 is reset to the initial state. As a result, the connection setting with the computer is performed again, and the computer 1
Recognizes the recording / reproducing apparatus 2 as an external drive of a semiconductor memory card and a floppy disk. In the second embodiment as well, the power supply circuit 9 is used as in the first embodiment.
Supplies the power from the external power source 8 and the power from the PC connection unit 10 to the entire internal circuit of the recording / reproducing apparatus when the external power source 8 is connected to the power source connector 5. When it is out of 5, the power supply to the floppy disk drive 4 is not performed (see FIG. 3).

As described above, according to the first and second embodiments, at least one function can be used regardless of whether power is supplied from the external power source or not. It has excellent characteristics in that

Although the semiconductor memory card slot and the floppy disk drive have been described in the first and second embodiments, the semiconductor memory card slot may not be used as long as the recording / reproducing apparatus can be operated by the power supplied by the interface. Further, if an optical disk storage device or the like is used instead of the floppy disk drive, the storage capacity becomes large and the convenience for the user becomes large. The interface is not limited to the USB as long as the interface can supply power from the computer.

[0027]

As described above, according to the present invention, recording is performed by using a semiconductor memory card slot or a recording / reproducing apparatus for another recording medium which requires more electric power than the semiconductor memory card slot as one unit. In the reproducing apparatus, the recording / reproducing unit that can be driven only by the power supplied from the interface can be used even when it is not supplied with power from the outside, and can be independently operated as an external memory reader / writer of the computer. The user can easily use it as a memory reader / writer without connecting an external power supply.

[Brief description of drawings]

FIG. 1 is a connection diagram of a recording / reproducing apparatus and a computer in Embodiments 1 and 2 of the present invention.

FIG. 2 is a configuration diagram of a recording / reproducing apparatus according to the first embodiment of the present invention.

FIG. 3 is a configuration diagram of a power supply circuit according to the first embodiment of the present invention.

FIG. 4 is a configuration diagram of a recording / reproducing apparatus according to a second embodiment of the present invention.

FIG. 5 is an external view of a conventional recording / reproducing device.

[Explanation of symbols]

1 computer (PC) 2 Recording / reproducing device 3 Semiconductor memory card slot 4 floppy disk drive 5 Power supply connector 6 Interface cable 7 Interface connector 8 External power supply 9 power supply circuit 9a First power converter 9b Second power converter 9c Third power converter 10 PC connection 11 Interface power supply 12 External power supply detection terminal 13 CPU 14 Reset circuit 15 Semiconductor memory card

Claims (10)

[Claims] 1. An interface capable of supplying power from a computer and a power supply for supplying power from an external power supply, which has a plurality of recording / reproducing units capable of recording and reproducing data on different types of recording media. In a recording / reproducing apparatus having a connector for a computer and functioning as a peripheral device of a computer, when the power connector is not connected to an external power source, a recording / reproducing unit that can be driven only by the power supplied from the interface can be used. A power supply unit for supplying electric power to an internal circuit for controlling the recording / reproducing unit that can be driven only by the electric power supplied from the interface when the power supply connector is not connected to an external power supply. If the recording connector is connected to an external power source, all recording / playback units And a control unit to recognize the recording and reproducing apparatus, wherein the control unit to perform the resetting of the connection to the computer when the connector the power is turned to the external power supply and the non-connected state or connected state. 2. The recording / reproducing according to claim 1, wherein whether or not the power supply connector is connected to an external power supply is detected by the control unit by monitoring an input voltage from the power supply connector. apparatus. 3. When only the power connector is disconnected while the interface and the power connector are connected, the control unit interrupts a recognition routine and requests the computer to re-recognize. The recording / reproducing apparatus according to claim 1, wherein 4. The control unit interrupts a recognition routine when the power supply connector is connected to an external power supply while only the interface is connected.
4. The recording / reproducing apparatus according to claim 1, wherein the recording / reproducing apparatus requests the computer to re-recognize. 5. An interface capable of supplying electric power from a computer and a power supply for supplying electric power from an external power supply, as well as having a plurality of recording / reproducing units capable of recording and reproducing data on different types of recording media. In a recording / reproducing apparatus having a connector for a computer and functioning as a peripheral device of a computer, when the power connector is not connected to an external power source, a recording / reproducing unit that can be driven only by the power supplied from the interface can be used. A power supply unit for supplying electric power to an internal circuit for controlling the recording / reproducing unit that can be driven only by the electric power supplied from the interface when the power supply connector is not connected to an external power supply. If the recording connector is connected to an external power source, all recording / playback units And a reset unit for resetting the control unit to an initial state when the power supply connector is disconnected or connected to an external power source, and the control unit is initialized by the reset unit. The recording / reproducing apparatus is characterized in that the connection with the computer is reset when it becomes. 6. The recording / reproducing apparatus according to claim 5, wherein the presence / absence of connection of the power source connector to an external power source is mechanically detected. 7. When only the power connector is disconnected in a state where the interface and the power connector are connected, the control unit which has been initialized by the reset unit is restored to the computer. The recording / reproducing apparatus according to claim 5, wherein recognition is requested. 8. When the power connector is connected while only the interface is connected,
8. The recording / reproducing apparatus according to claim 5, wherein the control unit that has been initialized by the reset unit requests the computer to re-recognize. 9. The recording / reproducing apparatus according to claim 1, wherein a slot of a semiconductor memory card is provided as a recording / reproducing unit that can be driven by electric power supplied from the interface. 10. The recording / reproducing apparatus according to claim 1, further comprising a recording / reproducing drive of a disk-shaped recording medium as a recording / reproducing unit which cannot be driven by the electric power supplied from the interface.