JP2007099034A - Portable computer - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a portable computer for detachably mounting a computer body to a sensor part mounted to a body of a bicycle. <P>SOLUTION: Operation buttons 23a-23f are provided around display parts 22a-22c of a computer body 6a. The operation buttons 23a-23d are used for resetting commands for switching contents displayed on the respective display parts 22a-22c or displayed numerical values, and setting a diameter of a wheel of a bicycle which is a measuring object to a sensor part 6b. The operation buttons 23e, 23f are a measuring start/stop button and a lap measuring button. An accommodation part 31 of the computer body 6a is provided at the center of the sensor part 6b. A transparent acrylic resin cover 32 is provided on the accommodation part 31. Operation buttons 35a-35d corresponding to the operation buttons 23a-23d provided on the computer body 6a is provided on the sensor part 6b. Power is supplied from the computer body 6a to the sensor part 6b in a non-contact manner. <P>COPYRIGHT: (C)2007,JPO&INPIT

Description

  The present invention relates to a portable computer used as, for example, a cycle computer. In particular, the computer is composed of two parts, a computer main body and a sensor part, and the sensor part is attached to a measurement target location such as a bicycle. The computer body can be removed from this sensor unit and carried away from the location to be measured, or attached to another sensor unit attached to another location to be measured (other bicycles) It is.

  2. Description of the Related Art Generally, there is known a traveling state detection device (referred to as a cycle computer) that calculates a traveling state such as a traveling speed or a traveling distance of a bicycle from the number of rotations of a bicycle wheel and calculates an estimated arrival time with respect to a planned traveling distance. Yes. The cycle computer calculates, for example, a traveling speed and a traveling distance from a rotational speed measuring means for measuring the rotational speed of the wheel and the rotational speed of the wheel and the diameter of the wheel obtained by the rotational speed measuring means. And display means for displaying.

  The rotational speed measuring means is provided in the vicinity of the wheel or the axle for measuring the rotational speed of the wheel, and the calculation display means is attached to, for example, a handle portion so that it can be easily seen by a person riding a bicycle. Therefore, it is necessary to send and receive signals between the two separately. Therefore, conventionally, a cycle computer has been proposed in which signals are transmitted and received between the rotation speed measurement means and the display calculation means by a cable or wirelessly.

  FIG. 5 shows an example of such a cycle computer. That is, in order to detect the passage of the magnet 4 attached to the front wheel 2 or the rear wheel 3 of the bicycle 1, the reed switch 5 is fixed to the frame side, and the opening / closing of the contact point is transmitted to the cycle computer 6, so that the speed or distance traveled. Is displayed. Similarly, the reed switch 9 for detecting the passage of the magnet 8 attached to the crank portion 7 is fixed to the frame side, and the opening / closing state of the contact is transmitted to the cycle computer 6 so that the number of rotations of the pedal per minute is determined. Is displayed. In this case, as means for informing the cycle computer 6 of the open / closed state of the contacts of the reed switches acting as the reed switches 5 and 9, means such as connection by cable or transmission by radio have been used.

  As described above, in the prior art of FIG. 5, data transmission is performed by connecting the reed switches 5 and 9 and the computer 6 side by cable or wirelessly. However, it is inevitable to provide a contact portion in connection by the cable. For this reason, there is a problem in that contact failure occurs in the event of frequent insertion / removal, and in wireless transmission, consideration must be given to the consumption of a battery for driving the transmitter provided on the side of the reed switches 5 and 9.

In addition to the prior art shown in FIG. 5, as an invention related to such a cycle computer, for example, those shown in Patent Document 1 and Patent Document 2 have been proposed.
Japanese Patent Laid-Open No. 11-129964 Japanese Patent Application Laid-Open No. 07-129881 JP 07-332344 A

  However, since the inventions of Patent Document 1 and Patent Document 2 both fix the entire cycle computer to the bicycle, when attaching to another bicycle, the entire computer is removed and fixed to the other bicycle again. Work was necessary. However, bicycles often have different wheel diameters depending on the model, so if you change the computer as it is and run, the speed display will differ from the actual display, so the user will need to reset the wheel diameter data each time. was there.

  Further, the invention of Patent Document 3 is an electronic wristwatch with the function of a cycle computer. When a reed switch is previously attached to a bicycle and the electronic wristwatch is used as a cycle computer, it extends from the reed switch. By connecting the cable to the wristwatch, the traveling speed and distance of the bicycle are displayed on the display screen of the electronic wristwatch. However, even if the electronic wristwatch that functions as a portable computer and the reed switch side are separated, the reed switch simply generates pulses generated by the rotation of a magnet provided on a wheel or the like. Since it is only transmitted to the electronic wristwatch and does not have a function to store data corresponding to the wheel diameter of the bicycle, when changing to a different bicycle, data such as the wheel diameter is re-applied from the electronic wristwatch side. Had to be set.

  Further, the inventions of Patent Documents 1 to 3 have the same drawbacks as the prior art of FIG. 5 because the speed detector such as a reed switch and the computer main body are connected by radio or cable.

  The present invention has been proposed in order to solve the above-described problems of the prior art, and the object thereof is to provide a sensor unit such as a reed switch for detecting the rotational speed of a wheel or a crank, and a computer main body. The computer body can be attached to other bicycles and other measuring points as it is detachable, and an electromagnetic induction type data transmission / reception system is used between the sensor unit and the computer body to achieve contactlessness and the sensor side. A portable computer that does not require a power source is provided.

  Another object of the present invention is to provide a storage means such as an arithmetic means or a memory on the sensor unit side, and store data (data such as a wheel diameter of a bicycle) of the measurement part attached with the sensor part in the storage means. By making it possible to provide a portable computer that eliminates the need for setting on the computer main body side by automatically reading the data of the sensor unit when the computer main body is mounted on another sensor unit.

  In order to achieve the above object, the invention of claim 1 is directed to a portable computer comprising a sensor unit attached to a measurement target location and a computer main body detachably attached to the sensor unit. The unit includes a detection unit that converts electromagnetic induction waves into electric power, a detection unit that detects an output of a measurement target location, and a sensor unit that converts output from the detection unit into transmission / reception data using the power output from the detection unit as a power source Side calculation means, and transmission / reception means for transmitting / receiving data between the sensor unit and the computer main body using the power output from the detection means as a power source, and the computer main body receives input to the computer main body or the sensor unit Means, electromagnetic induction wave sending means operated by a power source provided in the computer main body, and the sensor unit Transmission / reception means for transmitting / receiving transmission / reception data to / from the computer main body, main body side calculation means for generating display data based on transmission / reception data received from the sensor unit via the transmission / reception means, and display of the display data Display means.

  In the invention of claim 1 having the above-described configuration, when a computer main body having a power source is attached to the sensor unit, the electromagnetic induction wave from the sending means of the computer main body is detected by the detection unit of the sensor unit and converted into electric power. To do. As a result, each means of the sensor unit operates with this converted electric power, and it is possible to send the output from the measurement target point detected by the sensor unit to the main body even if no power source is provided in the sensor unit become.

  The invention of claim 2 is the invention of claim 1, wherein the sensor unit is attached to a bicycle body, and a detecting means is provided in the vicinity of a wheel and a crank of the bicycle to detect rotation thereof. Sensor unit side calculation means for accumulating the wheel and crank rotation speeds detected by the detection means, and generating a bicycle travel distance, travel speed, and crank rotation speed based on transmission / reception data obtained by the sensor section calculation means And a main body side calculating means.

  In the invention of claim 2 having the above-described configuration, the sensor unit is attached to the bicycle, and the number of rotations of the bicycle wheel and crank is detected by the detection means and transmitted to the computer main body. A portable computer can be used as a cycle computer.

  According to a third aspect of the present invention, in the first or second aspect of the present invention, the sensor unit accommodates a computer main body therein, and an input means provided on the computer main body on the surface of the sensor unit is a sensor. An operation button operated from outside the unit is provided, and an input signal from the operation button is transmitted to the computer main body via the transmission / reception unit.

  In the invention of claim 3 having the above-described configuration, it is possible to input a control signal and data to the computer main body by an operation button outside the sensor unit in a state where the computer main body is mounted on the sensor unit.

  According to a fourth aspect of the present invention, in the first, second, or third aspect of the invention, the sensor unit includes a storage unit that uses a nonvolatile memory, a rewrite unit that updates the contents of the storage unit, and the storage unit. And a reading means for reading the contents of the means.

  In invention of Claim 4 which has the above composition, data peculiar to a measurement part (for example, bicycle) which attached a sensor part to storage means by nonvolatile memory in a sensor part can be memorized, Moreover, the data is stored in the nonvolatile memory even after the power of the sensor unit is cut off by removing the main body. As a result, when the main body is mounted again, it is possible to perform calculations and display according to the measurement location by reading the data stored in the storage means without setting data specific to the measurement location from the main body side. it can.

  According to the present invention, the sensor unit does not require a dedicated power source such as a battery, and can receive data from the sensor unit without contact with the computer body, so that the user can read data from the sensor unit. There is no need to worry about poor contact or battery consumption at the sensor. Also, by writing data to the sensor unit, it is possible to store individual data of measurement points (bicycles, etc.), so you can drive with incorrect speed display without changing the settings of the computer body. Less. Furthermore, by providing an operation unit such as a push button on the sensor unit, the operation unit of the computer main body can be externally expanded, so that the sensor unit can be easily attached and the time required for this can be reduced. .

(1) Overall Configuration Hereinafter, an embodiment of the present invention will be specifically described with reference to FIG. FIG. 1 shows an example in which the portable computer of the present invention is applied to a cycle computer, and the basic configuration is the same as that shown in FIG. That is, in the prior art, the cycle computer 6 is directly fixed to the frame of the bicycle 1. However, in this embodiment, the computer 6 is attached to the bicycle 1 side, and the sensor unit 6b is detachable. And a computer main body 6a attached to the computer. In the present embodiment, the reed switches 5 and 9 connected to the cycle computer 6 in the prior art are connected to the sensor unit 6b via a cable.

(2) Configuration of Computer Main Body The right side of FIG. 2 is a plan view showing the configuration of the computer main body 6a in the present embodiment. The computer main body 6a has a shape similar to that of a wristwatch, and is provided with a band 21 so that the user can carry it by fitting it on his arm. Display units 22a to 22c using liquid crystal displays are provided at the front center of the computer main body 6a. These display parts 22a-22c display a bicycle speed, a crank rotation speed (cadence), a travel distance, etc. as an example. The contents displayed by the display units 22a to 22c are not limited to this, and can be appropriately changed according to the type of information processed by the cycle computer, such as time, lap time, distance to the destination, and predicted time. Further, in the present embodiment, the display units 22a to 22c that perform three types of numerical display are used, but the number and shape of the display units are not limited to this, and the display content is not limited to characters other than numbers. It is also possible to display graphics.

  Operation buttons 23a to 23f are provided around the display units 22a to 22c in the computer main body 6a. Of these, two operation buttons 23a to 23d provided on the left and right sides of the display unit are used for switching the display contents to the display units 22a to 22c, resetting the displayed numerical values, and measuring objects for the sensor unit 6b. Used to set the wheel diameter of the bicycle. The left and right operation buttons 23e and 23f provided below the display unit are a measurement start / stop button and a lap measurement button. Although six operation buttons are provided in the present embodiment, the number and arrangement of the operation buttons are not limited to this, and can be appropriately changed according to the function of the cycle computer. The number of buttons can also be changed by assigning a plurality of functions to one operation button.

(3) Configuration of Sensor Unit The left side of FIG. 2 is a plan view showing the configuration of the sensor unit 6b in the present embodiment. The sensor unit 6b is, for example, a top-opening container made of a synthetic resin molded product, and the accommodation unit 31 of the computer main body 6a is provided at the center thereof. The storage unit 31 is provided with a lid 32 made of a transparent acrylic resin, and the display units 22a to 22c of the computer main body 6a stored in the storage unit 31 can be viewed with the cover 32 closed. It can be done. The lid 32 has a shape and dimensions that cover the display portion of the computer main body 6a. The start / stop button 23e and the lap measurement button 23f provided on the computer main body 6a close the lid 32. It has a shape that does not cover it so that it can be operated even in a wet state.

  The lid 32 is attached to the sensor unit 6b so as to be openable and closable around a hinge unit 33 provided on one side of the sensor unit 6b, and a hook unit 34 provided on the opposite side of the hinge unit 33 is connected to the sensor unit 6b. By engaging with the edge of 6b, it is locked with the lid closed.

  Operation buttons 35a to 35d are provided at the four corners of the accommodating part 31 in the sensor part 6b. The operation buttons 35a to 35d correspond to the operation buttons 23a to 23d provided on the computer main body 6a. That is, when these operation buttons 35a to 35d are pressed, control commands and data from the respective buttons are transmitted to the computer main body 6a side via transmission / reception means provided in the sensor unit 6b and the computer main body 6a, and the computer Control commands and data similar to those when the corresponding operation button on the main body 6a side is pressed are input to the computer main body 6a.

  Although not shown, the sensor unit 6b is provided with a metal fitting or a band for fixing the sensor unit 6b to a bicycle handle or the like. Further, as shown in FIG. 3, a reed switch for detecting wheel rotation. 5 and a reed switch 9 for detecting crank rotation are connected via a cable 10. Here, the reed switch 5 for detecting wheel rotation and the reed switch 9 for detecting crank rotation in the present embodiment constitute detection means for detecting the output of the measurement target portion in the present invention.

(4) Block circuit diagram of computer main body The computer main body 6a and the sensor unit 6b having the above-described mechanical configuration are operated by an electromagnetic induction wave transmitted from the computer main body 6a side in order to act as a cycle computer. A mechanism and an electric circuit for generating electric power are provided on the 6b side. The configuration will be described below with reference to the block circuit diagrams of FIGS.

  FIG. 3 is a block diagram showing a configuration of the computer main body 6a. The computer main body 6a includes input means 41 for receiving input of control commands and various data for the computer main body or the sensor unit, and electromagnetic induction wave sending means 43 operated by a power source 42 such as a battery provided in the computer main body 6a. Transmission / reception means 44 for transmitting / receiving transmission / reception data between the sensor unit 6b and the computer main body 6a, and main body side for generating display data based on the transmission / reception data received from the sensor unit 6b via the transmission / reception means 44 Computation means 45 and display means 46 for displaying the display data are provided.

  Here, the input means 41 is each operation button 23a-23f shown in FIG. 2, and the display means 46 is each display part 22a-22c. The computer main body 6a has a built-in measuring timepiece and a user heart rate measuring device. The heart rate measuring device may be one that connects the heart rate measuring unit attached to the user's body and the computer main body 6a with a cord, or the sensor unit 6b and the heart rate measuring unit that are connected with a cord, and the data May be transferred from the sensor unit 6b to the computer main body 6a.

  The electromagnetic induction wave transmitting means 43 is incorporated in a reader / writer (interrogator) in the technical field of RFID (wireless tag) known as a so-called non-contact IC card, and generates, for example, a 13.56 MHz carrier wave. Crystal oscillator, carrier wave amplifier, and antenna. The transmission / reception means 44 that exchanges transmission / reception data with the sensor unit 6b may be a transmitter / receiver configured separately from the electromagnetic induction wave transmission means 43, but in this embodiment, the electronic induction wave transmission means 43 includes The carrier wave to be used is modulated by transmission / reception data, and the modulated signal is emitted as an electromagnetic field from the antenna, thereby sharing the electromagnetic induction wave sending means 43 and a part thereof.

  The main body side calculation means 45 that generates display data based on the transmission / reception data is separately connected to the rotation number of wheel and crank received from the sensor unit 6b and the integrated value thereof, and the clock and the computer main body 6a built in the computer main body 6a. Software for generating display data such as bicycle mileage, speed, cadence, heart rate, fatigue level, memory to load it, and calculations based on data obtained from heart rate measuring instruments Formed by a CPU. Further, the input means 41 and the display means 46 are connected to the main body side calculation means 45, and control commands and data from the input means 41 are received, and display data obtained as calculation results are displayed on the display means 46. Is configured to do.

(5) Block Circuit Diagram of Sensor Unit FIG. 4 is a block diagram showing a configuration of the sensor unit 6b. The sensor unit 6b includes a detection unit 51 that converts an electromagnetic induction wave generated by the computer main body 6a into electric power, a detection unit 52 that detects an output of a measurement target portion, and electric power output from the detection unit 51 as a power source. A sensor unit side arithmetic unit 53 that converts the output from the detection unit 52 into transmission / reception data, and a transmission / reception unit 54 that exchanges transmission / reception data between the sensor unit 6b and the computer main body 6a using the power output from the detection unit 51 as a power source. It has. Further, the sensor unit 6b is provided with a storage means 55 using a nonvolatile memory, a rewriting means 56 for updating the contents of the storage means 55, and a reading means 57 for reading the contents of the storage means 55.

  The detection means 51 is the same as that incorporated on the card side of a general non-contact IC card, and includes, for example, a coil for taking in an electromagnetic induction wave, and rectification / smoothing of current induced in the coil. The circuit includes a bypass circuit that controls the supply voltage to a constant value, and an electric circuit that connects these circuits to a load such as the detecting unit 52 to the reading unit 57.

  In the present embodiment, the detection means 52 that detects the output of the measurement target location is the reed switches 5 and 9 that detect the passage of the magnets 4 and 8 attached to the wheel 2 or 3 or the crank portion 7 of the bicycle 1. Further, when a heart rate detector is connected to the sensor unit 6b, it is also one of the detecting means 52.

  Similar to the main body side arithmetic means 45 provided in the computer main body 6 a, the sensor unit side arithmetic means 53 changes the signals detected by the respective detection means 52 into transmission / reception data, or reads out and reads out the rewrite means 56. Is formed by software for executing processing for updating the contents of the storage means 55 and for reading out necessary data such as the wheel diameter from the storage means 55, a memory for loading the software, and a CPU for executing calculations. ing.

  Note that the computing means 53 of the sensor unit 6b and the computing means 45 of the computer main body 6a provide data processing speed and design advantages in processing the signal obtained by the detecting means 52 into display data desired by the user. The role can be freely set according to gender. For example, the calculation means 53 of the sensor unit 6b may calculate only the integrated value of the pulses obtained by the reed switch that constitutes the detection means 52, or may store the wheel diameter stored in advance and the integrated value of the pulses. The travel distance may be calculated from the above, and the processing of the computing means 45 on the computer main body 6a side changes accordingly.

  The transmission / reception means 54 may be provided separately from the detection means 51 for generating electric power, similarly to the transmission / reception means 44 of the computer main body 6a. However, in this embodiment, a resistance or a capacitor serving as a load is turned on / off. Then, a load modulation circuit that changes the current flowing in the coil on the sensor unit 6b side is used. Thereby, the antenna provided in the transmission / reception means 44 on the computer main body 6a side can detect the fluctuation of the demagnetizing field emitted from the coil of the sensor unit 6b, and can receive the data from the sensor unit 6b.

The storage means 55, the rewrite means 56, and the read-out means 57 read out the computer main body 6a when the sensor section 6b stores various data detected by the detection section 52 or when the computer main body 6a is set in the sensor section 6b. In the case where various data (for example, wheel diameter, use date / time, travel distance, user name, etc. relating to the bicycle to which the sensor unit 6b is attached) are stored and the computer main body 6a is set in the sensor unit 6b again. The data is called from the storage means 55. Thus, every time the computer main body 6a is set with respect to the sensor unit 6b attached to a different bicycle, it is not necessary to input again data corresponding to the bicycle.
(6) Operation of Embodiment The operation of the portable computer of the present embodiment having the above-described configuration is as follows. That is, when it is desired to start running the bicycle, the user selects and operates one of the preset operation buttons to set the computer main body 6a to the operating state and accommodates it in the sensor unit 6b. The computer main body 6a in the operating state transmits an electromagnetic induction wave using the electromagnetic induction wave sending means 43 operated by the built-in power supply 42, and the wheel diameter data inquiry command to the sensor unit 6b by this electromagnetic induction wave. Continue to be sent out.

  The sensor unit 6b obtains operating power by the detection means 51 detecting this periodic induced wave output from the computer main body 6a. Upon receiving the wheel diameter inquiry command, the sensor unit 6b calls the data written in the non-volatile memory as the storage unit 55 by the calculation unit provided therein, and loads the load modulation circuit constituting the transmission / reception unit 54. Data is transmitted to the computer main body 6a by switching and changing the coil load. In addition, the wheel diameter inquiry procedure can also be realized by the computer main body 6a having a data table and the storage means 54 of the sensor unit 6b storing a number corresponding to the data table.

  The computer main body 6 a that has received the wheel diameter data transmits a measurement start command to the sensor unit 6 b via the transmission / reception means 44. Thereafter, as long as there is a response from the sensor unit 6b, the computer main body 6a inquires the sensor unit 6b about the integrated value of the number of opening / closing times per unit time of the wheel rotation detection reed switch 5 and the crank rotation detection reed switch 9. Do.

  The computer main body 6a displays display contents such as a travel distance, a travel speed, and a cadence on the display units 22a to 22c based on the integrated value. The operation buttons 23a to 23d having display contents that are difficult to operate by attaching the computer main body 6a to the sensor unit 6b are externally expanded by pressing the operation buttons 35a to 35d provided on the sensor unit 3b. The computer main body 6a periodically inquires the sensor unit 6b about the operation state of the operation buttons 35a to 35d, and when the pressing of the operation button is detected, the display contents of the display units 22a to 22c are changed and displayed.

  According to this embodiment having the above-described configuration, the computer main body 6a and the sensor unit 6b are configured to be detachable, and the sensor unit 6b is supplied with power without contact from the computer main body 6a. The worry of running out of battery in the part 6b is eliminated. Also, if the sensor unit 6b is prepared for each bicycle, the operator can display various data by using the data prepared on the sensor unit 6b as it is just by carrying and setting the computer main body 6a. Is possible.

(7) Other Embodiments The present invention is not limited to the embodiment as described above, and the use thereof is not limited to the cycle computer, and the sensor unit provided on the measurement target location side is not contacted from the computer main body side. It can be used for all portable computers for other purposes that supply power.

The side view which shows the state which attached the portable computer of this invention to the bicycle. The top view which shows one Embodiment of the portable computer of this invention. The block circuit diagram which shows an example of the circuit structure of the computer main body in this invention. The block circuit diagram which shows an example of the circuit structure of the sensor part in this invention. The side view which shows the state which attached the conventional cycle computer to the bicycle.

Explanation of symbols

DESCRIPTION OF SYMBOLS 1 ... Bicycle 2 ... Front wheel 3 ... Rear wheel 4 ... Magnet 5 ... Reed switch 6 ... Cycle computer 6a ... Computer main body 6b ... Sensor part 7 ... Crank part 8 ... Magnet 9 ... Reed switch 10 ... Cable 21 ... Bands 22a-22c ... Display units 23a to 23f ... operation buttons 31 ... storage unit 32 ... lid 33 ... hinge unit 34 ... hooks 35a-35d ... operation buttons 41 ... input means 42 ... power source 43 ... electromagnetic induction wave sending means 44 ... transmission / reception means 45 ... main body Side calculation means 46 ... Display means 51 ... Detection means 52 ... Detection means 53 ... Sensor unit side calculation means 54 ... Transmission / reception means 55 ... Storage means 56 ... Rewrite means 57 ... Reading means

Claims (4)

In a portable computer comprising a sensor unit attached to a measurement target location and a computer main body detachably attached to the sensor unit,
The sensor unit is a detection unit that converts electromagnetic induction waves into electric power, a detection unit that detects an output of a measurement target location, and an electric power output from the detection unit is used as a power source to convert output from the detection unit into transmission / reception data. Sensor unit side calculating means, and transmission / reception means for transmitting and receiving transmission / reception data between the sensor unit and the computer main body using power output from the detection means as a power source,
The computer main body transmits / receives transmission / reception data between the input means for receiving an input to the computer main body or the sensor unit, the electromagnetic induction wave sending means operated by a power source provided in the computer main body, and the sensor unit and the computer main body. Transmission / reception means for generating, display-side data generation means for generating display data based on transmission / reception data received from the sensor unit via the transmission / reception means, and display means for displaying the display data. A portable computer.   Detecting means for detecting the rotation of the sensor unit attached to the bicycle body and in the vicinity of the wheel and crank of the bicycle; and calculating means for integrating the rotational speeds of the wheel and crank detected by the detecting means; The portable computer according to claim 1, further comprising: calculation means for generating a bicycle travel distance, travel speed, and crank rotation speed based on transmission / reception data obtained by the calculation means.   The sensor unit accommodates a computer main body therein, and an operation button for operating input means provided on the computer main body from the outside of the sensor unit is provided on the surface, and an input signal from the operation button is input to the sensor unit. The portable computer according to claim 1, wherein the portable computer transmits the data to a computer main body via a transmission / reception unit.   The said sensor part is provided with the memory | storage means by a non-volatile memory, the rewriting means which updates the content of this memory | storage means, and the read-out means which reads the content of this memory | storage means, The claim 1 characterized by the above-mentioned The portable computer according to claim 3.

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