JPH07295685A - Information processing system - Google Patents

Abstract

PURPOSE:To facilitate mutual connections for the supply of a power source and obtain the information processing system which is easy to use by supplying the electric power from the information processor to a portable information processor through the same connection cable. CONSTITUTION:An AC adapter 103 is the power source of an external information storage device 102. The portable information processor 101 is independently usable by using its internal battery or chargeable battery as its power source, but when it is connected to the information storage device 102 through the connection cable 104, the electric power is supplied from the information storage device 102 through the connection cable 104. Namely, the connection cable 104 transmits signals between the portable information processor and information storage device 102 and also supplies the electric power; and the signals and electric power are superposed one over the other, so mutual connections are easily made. This constitution facilitates the cable attachment and detachment, so the function of the information processing system including the information storage device 102 as an external peripheral device can be displayed sufficiently.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an information processing system for connecting a portable information processing device and an information storage device to exchange mutual information data such as data and programs.

[0002]

2. Description of the Related Art In a conventional portable information processing apparatus, such as a so-called electronic notebook, a hard disk or floppy disk having a large storage capacity has a large weight and power consumption, and thus it is difficult to incorporate it.

Therefore, these portable information processing devices usually use a built-in limited capacity semiconductor memory, and if necessary, connect an information storage device such as a hard disk drive or a floppy disk drive. And is using it.

That is, in consideration of the actual usage status of the portable information processing device, when the portable information processing device is used by being connected to the information storage device, the contents such as data and programs accumulated in the information storage device are carried by the portable information processing device. That is, the information is pulled out to the information processing device, and conversely, the contents of the portable information processing device are accumulated in the information storage device having a large storage capacity.

This means that the information storage device compensates for the shortage of the storage capacity due to the shape and the power supply capacity which are caused by the restriction of the portability required for the portable information processing device.

FIG. 8 is a perspective view showing the configuration of a conventional information processing system. The configuration of the conventional information processing system shown in FIG. 8 will be described below.

The information processing system includes a portable information processing device 8
01, an information storage device 802 which is an example of a floppy disk drive here, an AC adapter 803 for supplying DC power to the portable information processing device 801, and a connection cable 804 for connecting the portable information processing device 801 and the information storage device 802. It consists of and.

That is, in the case of the configuration example of FIG. 8, the portable information processing device 801 is normally used alone when it is carried, and the power source is driven by an internal battery or a rechargeable internal battery.

When the information storage device 802 is connected to the portable information processing device 801, the information storage device 8 is used.
As shown in FIG. 8, the portable information processing device 8
01 through the connection cable 804.

Generally, this connecting cable 804 has 34
Use a pin or 26-pin interface cable with a built-in power line.

FIG. 9 is a perspective view showing the configuration of another conventional information processing system.

The information processing system shown in FIG. 9 includes a portable information processing device 901, an external information storage device 902, and an AC adapter 9 for supplying DC power to the portable information processing device 901.
03, portable information processing device 901 and information storage device 902
Information storage device 902 and connection cable 904 for connecting
And a power cord 905 that directly supplies commercial power.

As the connection cable 904, a cable with a 34-pin or 26-pin power supply line built-in interface is used as in the connection cable 804 shown in FIG.

[0014]

Here, in the configuration of FIG. 8, the information storage device 802 which consumes a relatively large amount of power.
Is supplied via the portable information processing device 801, and the power of the portable information processing device 801 is supplied from a commercial power source via the AC adapter 803.

However, when exchanging data with the information storage device 802 without using the AC adapter 803, the built-in battery of the portable information processing device 801 or the rechargeable built-in battery is used. There is a problem that it cannot be used for a long time because the capacity is limited.

Further, the configuration of FIG. 9 has a problem that the wiring of the commercial power source for supplying power to the information storage device 902 separately from the commercial power source increases.

Furthermore, the more frequently the portable information processing device 801 is used, the more frequently the information data with the information storage device 802 will be updated, and 34 pins or 2 will be updated each time.
Since a 6-pin multi-pin connector must be connected, there are problems that the connection is troublesome and that a plugging failure occurs when the connector is plugged.

An object of the present invention is to solve the above-mentioned problems, and to use a portable information processing device driven by a battery or a rechargeable built-in battery, when an information storage device with relatively large power consumption is connected and used. It is to provide an information processing system which is easy to use by facilitating the supply and interconnection of the information.

[0019]

In order to achieve the above object, the present invention provides a portable information processing device, an information storage device, an AC adapter connected to the information storage device, a portable information processing device and an information storage device. Has a connection cable for connecting
The power of the information storage device is supplied from a commercial power source through an AC adapter, and the portable information processing device and the information storage device exchange information data with each other via a connection cable, and also via the same connection cable. A feature is that power is supplied from the information storage device to the portable information processing device.

In order to achieve the above object, the present invention further provides a portable information processing device, an information storage device, an AC adapter for connecting to the information storage device, and a connection cable for connecting the portable information processing device and the information storage device. The power source of the information storage device is supplied from a commercial power source via an AC adapter, and the information data from the information storage device is modulated via the first interface unit via the connection cable to store the information. It is characterized by being superposed on a power supply supplied from the device to the portable information processing device and conveyed to the portable information processing device.

In order to achieve the above object, the present invention further comprises a portable information processing device, an information storage device, an AC adapter connected to the information storage device, and a connection cable connecting the portable information processing device and the information storage device. And a power source of the information storage device is supplied from a commercial power source through an AC adapter, and the information data from the portable information processing device is modulated through the second interface section via the connection cable,
It is characterized by being superposed on a power supply supplied from the information storage device to the portable information processing device and conveyed to the information storage device.

Further, in order to achieve the above object, the present invention provides a first interface section of an information storage device, a first external power supply input terminal, a first low pass filter, a first band pass filter and a second band pass filter. Of the bandpass filter, the first decoder, the first modulator, and the connection plug.

Further, in order to achieve the above object, the present invention provides a second interface portion of a portable information processing device, which comprises a second external power input terminal, a second low pass filter, a diode, a secondary battery and a third battery. And a fourth bandpass filter, a second decoder and a second modulator.

Further, in order to achieve the above object, the present invention is characterized in that the connection cable for connecting the portable information processing device and the information storage device has a structure having a pair of coaxial electrodes.

[0025]

The portable information processing device and the information storage device are connected by the connecting cable having a structure having a pair of coaxial electrodes,
DC power is supplied from the information storage device with large power consumption to the portable information processing device via the connection cable, and
Modulate mutual information data such as data and programs,
By superimposing and replacing the DC power supply, it is possible to reduce the number of pins of the connection cable and significantly reduce the troublesomeness of connection of the connection cable.

[0026]

1 is a perspective view showing the configuration of an information processing system according to the present invention. The configuration of the information processing system of the present invention will be described below with reference to the perspective view of FIG.

The information processing system of the present invention comprises a portable information processing device 101, an information storage device 102, and an information storage device 1.
It is configured by an AC adapter 103 that supplies power to the power source 02 and a connection cable 104 that connects the portable information processing device 101 and the information storage device 102.

The AC adapter 103 is a power source for the external information storage device 102. The portable information processing device 101 can use the built-in battery or the rechargeable built-in battery independently as a power source. However, when connecting to the information storage device 102 with the connection cable 104, the connection cable 10
Power is supplied from the information storage device 102 via No. 4.

That is, the connection cable 104 not only transmits signals between the portable information processing device 101 and the information storage device 102, but also supplies power, but as will be described later in detail, since signals and power are superimposed. Easy to interconnect.

FIG. 2 is a perspective view showing a case where the portable information processing device of the present invention is used alone. As shown in FIG. 2, an AC adapter 103 is connected to the portable information processing device 101. Portable information processing device 101 and AC shown in FIG.
The adapter 103 is the same as the mobile information processing device 101 and the AC adapter 103 shown in FIG.

That is, although the portable information processing device 101 can use the built-in battery or the rechargeable built-in battery as a power source independently, it can also be directly supplied with power from the AC adapter 103.

A detailed description of the information processing system of the present invention will be given below. FIG. 3 is a block diagram showing the internal configuration of the portable information processing device of the present invention. The internal configuration of the portable information processing device which is a component of the information processing system of the present invention shown in FIG. 3 will be described below.

The internal configuration of the portable information processing device shown in FIG. 3 has a central processing unit 309 (referred to as CPU in the drawing).
And a second interface circuit section 312.

The central processing unit 309 is a main part of the portable information processing device, and has a so-called electronic notebook function such as a word processor, a calculator or a schedule table. Further, the central processing unit 309 has a second serial interface unit 3 for bidirectionally exchanging data with the outside.
Have 10.

The second interface circuit section 312 is
A second external power supply input terminal 301 that connects to the AC adapter 103 shown in FIG. 2 or connects to the external information storage device 102 via the connection cable 104 shown in FIG.
A second low-pass filter 302 (denoted as LPF in the drawing), a diode 303, and a secondary battery 304.
And a third bandpass filter 305 (BPF in the drawing).
1) and a second decoder 306 (D in the drawing).
EC1) and the fourth bandpass filter 30.
7 (denoted as BPF2 in the drawing) and the second modulator 3
08 (described as MOD2 in the drawing).

Next, the connection state of the components of the portable information processing device shown in FIG. 3 will be described. Second external power supply input terminal 30
One terminal of the second external power supply input terminal 301 is connected to the ground, and the other terminal of the second external power supply input terminal 301 is connected to the second low-pass filter 3
02 and one terminal of the third bandpass filter 305 and the fourth bandpass filter 307.

The other terminal of the second low-pass filter 302 is connected to the anode of the diode 303, the cathode of the diode 303 is connected to the positive electrode of the secondary battery 304, and the negative electrode of the secondary battery 304 is connected to the ground. Connecting.

The other terminal of the third bandpass filter 305 is connected to the second serial interface unit 310 of the central processing unit 309 via the second decoder 306.
Connect to.

The other terminal of the fourth bandpass filter 307 is connected to the second serial interface unit 310 of the central processing unit 309 via the second modulator 308.

Next, the internal operation of the portable information processing device shown in FIG. 3 will be described. A DC power source from the AC adapter 103 shown in FIG. 2 or the external information storage device 1 shown in FIG.
No. 02 via the connection cable 104 and the modulated carrier wave are the second external power supply input terminal 3
It becomes the input signal of the other terminal of 01. The DC power supply and the modulated carrier will be described in detail in the configuration of the information storage device described with reference to FIG.

The input signal of the other terminal of the second external power supply input terminal 301 rejects the signal component of the carrier wave superimposed on the DC power supply by the second low pass filter 302, and passes through the diode 303 to the secondary battery 304. In addition to charging, DC power is supplied to the power supply terminal of the central processing unit 309 and the power supply terminals of the second decoder 306 and the second modulator 308.

The input signal of the other terminal of the second external power supply input terminal 301 is the third bandpass filter 30.
5, the modulated carrier wave from the information storage device is extracted, detected by the second decoder 306, and the central processing unit 309
The information processing data is sent to the second serial interface 310, the central processing unit 309 analyzes the information data, and performs the processing according to the analysis result.

On the other hand, the second modulator 308 modulates the information data from the portable information processing device and outputs it as a carrier wave,
The fourth band pass filter 307 removes the harmonic component of the carrier wave and outputs the carrier wave to the other terminal of the second external power supply input terminal 301.

As will be described later, the second decoder 306 can detect the presence / absence of a carrier wave from the information storage device 102 shown in FIG. 1, so that the central processing unit 309 causes the carrier wave from the information storage device 102 shown in FIG. If not present, the second modulator 308 is programmed to stop operating.

Therefore, when the AC adapter 103 shown in FIG. 2 is connected to the second external power supply input terminal 301, erroneous data transfer with the external information storage device is prohibited.

FIG. 4 is a block diagram showing the internal structure of the floppy disk drive in the information storage device of the present invention.
The internal configuration of the floppy disk drive, which is a component of the information processing system of the present invention shown in FIG. 4, will be described below.

The internal configuration of the floppy disk drive shown in FIG. 4 is the disk arithmetic processing unit 409 (in the drawing, FDD
Described) and a first interface unit 412.

The disk arithmetic processing unit 409 is a magnetic storage device, and although not shown, data can be written, erased, and read using a magnetic floppy disk as a recording medium. Further, the disk arithmetic processing unit 409 has a first serial interface unit 410 for bidirectionally exchanging data with the outside.

The first interface circuit section 412 is
A first external power supply input terminal 401 connected to the AC adapter 103 shown in FIG. 1 and a first low-pass filter 402.
(Denoted as LPF in the drawing), a first bandpass filter 405 (denoted as BPF2 in the drawing), and a first
Decoder 406 (denoted as DEC2 in the drawing) of
A second bandpass filter 407 (denoted as BPF1 in the drawing) and a first modulator 408 (MOD1 in the drawing).
Described) and a connection plug 411.

Next, the connection state of the components of the information storage device shown in FIG. 4 will be described. One terminal of the first external power supply input terminal 401 is connected to the ground, and the other terminal of the first external power supply input terminal 401 is the first low pass filter 402.
One of the terminals and the power supply terminals of the disk arithmetic processing unit 409, the first decoder 406, and the first modulator 408 are connected.

The other terminal of the first low-pass filter 402 is connected to one terminal of the first band-pass filter 405, the second band-pass filter 407 and the connection plug 41.
One of the terminals is connected to one terminal, and the other terminal of the connection plug 411 is connected to the ground.

The other terminal of the first bandpass filter 405 is connected to the first serial interface unit 4 of the disk arithmetic processing unit 409 via the first decoder 406.
Connect to 10.

Further, the other terminal of the second bandpass filter 407 is connected via the first modulator 408 to the first serial interface section 41 of the disk arithmetic processing section 409.
Connect to 0.

Next, the internal operation of the floppy disk drive shown in FIG. 4 will be described. The DC power source from the AC adapter 103 shown in FIG. 1 is the first external power source input terminal 40.
1, and becomes the power source for the disk arithmetic processing unit 409, the first decoder 406, the first modulator 408.

The DC power source of the first external power source input terminal 401 removes a noise source by the first low pass filter 402 and outputs the DC power source to one terminal of the connection plug 411.

Further, the first modulator 408 converts the information data from the disk arithmetic processing unit 409 into the first modulator 408.
Via the second band pass filter 407 to remove the harmonic component of the carrier wave, superimpose it on the DC power supply, and output the result to one terminal of the connection plug 411.

On the other hand, the carrier wave sent from the portable information processing device is superimposed on the DC power source and input to one terminal of the connection plug 411, and the first band pass filter 405 extracts the carrier wave from the portable information processing device. , First decoder 40
6, the information data is sent to the first serial interface unit 410 of the disc arithmetic processing unit 409, and the disc arithmetic processing unit 409 analyzes the information data to write, erase and read the information data.

FIG. 5 is a circuit diagram showing a configuration of the bandpass filter and decoder of the present invention. The bandpass filter 501 and the decoder 502 shown in FIG. 5 are the third bandpass filter 305 and the second decoder 30 shown in FIG.
6 and each of the configurations will be described below.

The bandpass filter 501 has a first inductance 510 and a first capacitor 511 connected in series, a second inductance 512 and a second capacitor 513 connected in parallel, and a constant K type bandpass filter. And a carrier wave is input to the input 503 of the first inductance 510.

Here, the decoder 502 includes a diode 520 that detects the output of the bandpass filter 501, a third capacitor 521 that forms a detection time constant circuit, a first resistor 522 that forms a detection time constant circuit, and a first resistor 522. Amplifier 52
3 and the output of the first amplifier 523 is the demodulated signal output 504.

The second resistor 524 and the fourth capacitor 526 are carrier wave detection circuits for detecting the presence or absence of a carrier wave by integrating the detection output of the diode 520, and the output of the second amplifier 525 is the carrier wave detection output 506. Has become.

The first bandpass filter 40 shown in FIG.
5 and the first decoder 406 have the same configuration as the circuit shown in FIG. 5, except that the frequency bands are different.

FIG. 6 is a circuit diagram showing the configurations of the bandpass filter and modulator of the present invention. Modulator 6 shown in FIG.
01 and the bandpass filter 602 correspond to the second modulator 308 and the fourth bandpass filter 307 shown in FIG. 3, and the respective configurations will be described below.

Here, the modulator 601 is a 2-input NAND.
A gate 610 is provided, one input of which is a carrier frequency input 603, and the other input of which is a modulation signal input 604. When the modulation signal 606 is “1”, the NAND gate 610 outputs the carrier frequency 605. That is,
A carrier frequency output modulated with the modulated signal 606 is obtained.

Further, the bandpass filter 602 constitutes a π type bandpass filter with the second capacitor 621, the third capacitor 623 and the inductance 622. The first capacitor 620 is a coupling capacitor with the previous stage. That is, it is a bandpass filter that removes the harmonic component of the carrier frequency output modulated by the modulation signal from the NAND gate 610.

The second bandpass filter 40 shown in FIG.
7 and the first modulator 408 have the same configuration as the circuit shown in FIG. 6 except that the frequency bands are different.

FIG. 7 is a circuit diagram showing the structure of the low-pass filter of the present invention. The low pass filter shown in FIG. 7 includes a first inductance 710, a capacitor 712, and a second inductance 711, and an input signal is input 71
It is a general low-pass filter that enters 0 and outputs to the output 702. The second low pass filter 302 shown in FIG.
And corresponds to the first low-pass filter 402 shown in FIG.

As can be understood from the above description of the embodiments, in the present invention, a portable information processing device represented by a so-called electronic notebook has a large storage capacity but a large weight and power consumption. Separate the floppy disk drive as an information storage device.

The portable information processing device and the floppy disk drive as the information storage device can be connected to each other as needed, and power can be supplied to the portable information processing device from the external information storage device. To configure.

By superimposing mutual information data as a signal on the connection cable connecting them, the portable information processing device and the external information storage device can be connected to each other with a pin number for an external power supply. A small number of connection plugs having a pair of coaxial electrodes can be used for easy interconnection.

Furthermore, even if an AC adapter is directly connected to the external power input terminal of the portable information processing device, the transmission data system of the carrier wave superposed on the power supply does not operate. As a result, it is possible to supply power to the portable information processing device for a long time.

[0072]

As described above, this eliminates the hassle of interconnecting an external information storage device with a multi-pin cable and separately connecting an external power source when the portable information processing device is used on a daily basis, and the cable is detached. Therefore, there is an effect that the functions of the information processing system including the information storage device which is an external peripheral device can be fully exerted.

The above is the information processing system for connecting the power source and the information data based on the floppy disk drive according to the present invention in a superposed manner. However, even if the above-mentioned external information storage device is a hard disk, the same configuration is adopted. It goes without saying that not only can it be realized, but it can be widely applied to peripheral devices of conventional information processing systems such as printers.

[Brief description of drawings]

FIG. 1 is a perspective view showing a configuration of an information processing system according to an embodiment of the present invention.

FIG. 2 is a perspective view showing a configuration when the portable information processing device according to the embodiment of the present invention is used alone.

FIG. 3 is a block diagram showing an internal configuration of a portable information processing device according to an embodiment of the present invention.

FIG. 4 is a block diagram showing an internal configuration of an information storage device according to an embodiment of the present invention.

FIG. 5 is a circuit diagram showing a configuration of a bandpass filter and a decoder according to an embodiment of the present invention.

FIG. 6 is a circuit diagram showing configurations of a bandpass filter and a modulator according to an embodiment of the present invention.

FIG. 7 is a circuit diagram showing a configuration of a low-pass filter according to an embodiment of the present invention.

FIG. 8 is a perspective view showing a configuration of a conventional information processing system.

FIG. 9 is a perspective view showing the configuration of another conventional information processing system.

[Explanation of symbols]

 101 portable information processing device 102 information storage device 103 AC adapter 104 connection cable

Claims (8)

[Claims] 1. A portable information processing device, an information storage device,
It has an AC adapter for connecting to the information storage device and a connection cable for connecting the portable information processing device and the information storage device, and the power supply of the information storage device is supplied from a commercial power source via the AC adapter to connect the connection cable. An information processing system characterized by exchanging information data between a portable information processing device and an information storage device via the same, and supplying power from the information storage device to the portable information processing device via the same connection cable. . 2. A portable information processing device, an information storage device,
It has an AC adapter for connecting to the information storage device and a connection cable for connecting the portable information processing device and the information storage device, and the power supply of the information storage device is supplied from a commercial power source via the AC adapter to connect the connection cable. It is characterized in that the information data from the information storage device is modulated via the first interface unit via the first interface unit, superimposed on the power supply supplied from the information storage device to the portable information processing device, and conveyed to the portable information processing device. Information processing system. 3. A portable information processing device, an information storage device,
It has an AC adapter for connecting to the information storage device and a connection cable for connecting the portable information processing device and the information storage device, and the power supply of the information storage device is supplied from a commercial power source via the AC adapter to connect the connection cable. It is characterized in that the information data from the portable information processing device is modulated via the second interface section via the second interface unit, superimposed on the power supplied from the information storage device to the portable information processing device, and conveyed to the information storage device. Information processing system. 4. A first interface section of the information storage device includes a first external power supply input terminal, a first low pass filter, a first band pass filter, a second band pass filter, and a first decoder. The information processing system according to claim 1 or 2, further comprising a first modulator and a connection plug. 5. The first interface section of the information storage device includes a first external power supply input terminal, a first low pass filter, a first band pass filter, a second band pass filter and a first decoder. A first modulator and a connection plug, wherein the first external power supply input terminal is connected to the power supply terminals of the first decoder and the first modulator, and the first external power supply input terminal is the first Connected to a connection plug via a low-pass filter, the connection plug connects to a first decoder via a first band-pass filter, and the connection plug further connects to a first modulation via a second band-pass filter. The information processing system according to claim 1, wherein the information processing system is connected to a container. 6. The second interface section of the portable information processing device comprises a second external power supply input terminal, a second low pass filter, a diode, a secondary battery, a third band pass filter and a fourth band pass. Filter and second decoder and second
4. The information processing system according to claim 1 or 3, further comprising: 7. The second interface unit of the portable information processing device comprises a second external power supply input terminal, a second low pass filter, a diode, a secondary battery, a third band pass filter and a fourth band pass. Filter and second decoder and second
And a second external power supply input terminal connected to the power supply terminals of the secondary battery, the second decoder, and the second modulator through the second low-pass filter and the diode. The second external power supply input terminal is connected to the second decoder via the third bandpass filter, and the second external power supply input terminal is connected to the second modulator via the fourth bandpass filter. Claim 1 or claim 3 characterized in that
The information processing system described in. 8. The information processing system according to claim 1, wherein the connection cable connecting the portable information processing device and the information storage device has a structure having a pair of coaxial electrodes. .