JP2797456B2 - Location information input device - Google Patents

Description

Description: TECHNICAL FIELD The present invention relates to an input device for inputting position information.

[Prior Art] Conventionally, as a two-dimensional position information input device, magnetostrictive wires made of a magnetostrictive alloy are arranged in a matrix in the X-Y direction, and the electric power of the magnetostrictive wires caused by the influence of a magnetic field generating source that gives position information. A device that detects and inputs position information by monitoring a change in resistance is known.

[Problems to be Solved by the Invention] However, in the conventional input device, there is a problem that the line diameter of the magnetostrictive wires and the arrangement interval are limited, and the resolution of the input position is low. In addition, in the case of handwriting input, it is extremely difficult to add density gradation information of a line segment in addition to position information.

The present invention has been made in order to solve the above-described problems, and can increase the resolution of an input position, and can impart the density gradation of a line segment at the time of line segment input such as handwriting input. It is another object of the present invention to provide a position information input device to which numerical information can be given.

Means for Solving the Problems In order to achieve this object, a position information input device according to the present invention comprises a sheet-like storage battery in which a plurality of storage battery cells are arranged in a matrix, and an anode or cathode current collector of the storage battery. A pressure-sensitive memory element comprising a sheet-shaped pressure-sensitive switch for inputting position information provided in the battery, and a charging circuit for charging the storage battery; and discharging the charge of the storage battery after charging through the pressure-sensitive switch. And a measuring circuit for measuring the remaining charge amount of the storage battery after discharging.

[Operation] In the above configuration, a fixed amount of electric energy is stored in each sheet storage battery by an external power supply. A pressure-sensitive switch is formed on this sheet-shaped storage battery, and the pressure-sensitive switch is turned on by an input pen from the top of the sheet-shaped storage battery. Discharge occurs. Due to this discharge, a distribution is generated in the accumulated charge amount of the sheet storage battery divided into many parts. In order to recognize this as a pressure-sensitive latent image, the sheet storage batteries are individually discharged to obtain bitmap information. In addition, labeling of points and line segments can be performed by assigning addresses to the position information when inputting the position information.

[Embodiment] An embodiment of the present invention will be described below with reference to the drawings.

FIG. 1 is a cross section of a single pressure-sensitive memory element in a position information input device, FIG. 2 is an arrangement configuration of the pressure-sensitive memory element, and FIG. 3 is a whole including a pressure-sensitive memory element and an electric circuit in the present input device. The configuration is shown.

In FIG. 1, a sheet storage battery 1 and this storage battery 1
A position information input unit 2 (hereinafter, referred to as an input unit) formed of a pressure-sensitive switch formed above constitutes a pressure-sensitive memory element 3. The sheet-shaped storage battery 1 includes an anode current collector 4 such as Ni.
, An anode 5 composed of V ₆ O ₁₃ , V ₂ O _5, etc., an electrolyte 6 composed of a polymer electrolyte or the like obtained by mixing LiClO _{4 in} a polyethylene derivative, a cathode 7 composed of a Li—Al alloy, and a cathode And an electric body 8.

The input unit 2 composed of a pressure-sensitive switch includes a protective film 9 made of a film such as polyester, a white background material 10 kneaded with TiO ₂ or the like, and a discharge made of any material such as copper, nickel, aluminum, and chromium. And a pressure-sensitive switch 12 in which carbon or nickel powder of 10 μm or less is mixed. In addition, as described later, the protective film 9 is used.
Input is performed by pressing from above with an input pen or the like. In this embodiment, the input unit 2 is provided on the anode current collector 4. However, the input unit 2 may be provided on the cathode current collector 8.

FIG. 2 shows a position input sheet member 20 formed by arranging and connecting a plurality of the above-described pressure-sensitive memory elements in a matrix in the X and Y directions. The member 20 includes a protective film 9, a pressure-sensitive switch arranged in a matrix, a sheet-shaped storage battery including storage battery cells, a discharge electrode, a cathode current collector, and an extraction electrode 14 including a heating element electrode. Leader electrode 15 consisting of electrode, anode current collector and heating element electrode
It is formed with.

Next, the extraction electrode and its electric circuit will be described with reference to FIG. The controller 30 is for performing a matrix scan on various electrodes in the X and Y directions, and a shift register or the like may be used as a component of the switch. In the controller 30, switches 31 and 32 (X direction) are connected to the anode current collector 4 and the discharge electrode 11, and a switch 33 (Y direction) is connected to the cathode current collector 8, respectively. The switch 36 and the external power supply 37 constitute a charging circuit for charging the storage battery 1 (4 to 8 in FIG. 3) via the switches 31 and 33, and the discharging resistor 38 includes the switches 32 and 3
3. A discharging circuit for discharging the electric charge of the storage battery through the input unit (pressure-sensitive switch) 2 is configured. (Measurement as map information). Each switch in the controller 30 is a CPU 45
, And the measured data is stored in the memory 46.

 Next, the operation of the above configuration will be described.

When the switch 36 is turned on for a certain time and the switches 31 and 33 are sequentially switched, an external power supply (preferably a constant current power supply) 37
Thus, a specified amount of electric energy is stored in the sheet storage battery 1. Next, when all the switches 32 and 33 are turned on and the pressure-sensitive switch 12 is pressed with the input pen 50, the switch 12 is turned on.
Turns on, discharge electrode according to pressure level and pressure time
The electric charge of the storage battery 1 is discharged through 11. In this way, a storage amount distribution occurs in the storage battery 1, and a pressure-sensitive latent image is formed.

Next, the switch 39 for reading the pressure-sensitive latent image to the outside as bitmap information is turned on, the switches 31 and 33 are alternately switched, and the remaining charge amount of each battery cell is measured with the load 40. The residual charge amount thus measured is stored in the memory 46 as bitmap information. With the above operation, it is possible to impart gradation to points and lines according to the pen pressure and pen speed of handwriting input. As described above, not only the information of the density gradation but also the analog value and the multi-value information can be added.

Also, when labeling the position information of points and line segments, when pressing the pressure-sensitive switch 12 with the input pen 50,
The switches 32 and 33 may be sequentially switched at a predetermined timing. If an ink pen is used as the input pen 50, an ink image on the protective film 9 is drawn while
You can type while looking at it.

[Effects of the Invention] As described above, according to the present invention, the position information is obtained by charging / discharging the charge of the storage battery by pressurizing the input pen using the pressure-sensitive memory element including the sheet-shaped storage battery and the pressure-sensitive switch. To obtain bitmap information, it is easy to increase the resolution of the input position, and to add density gradation to the data of point and line segment input, and to add numerical information. can do.

Further, by inputting the pressure while the pressure-sensitive memory element is scanned in a matrix, the input information can be labeled.

[Brief description of the drawings]

FIG. 1 is a cross-sectional view of a single pressure-sensitive memory element used in a position information input device according to an embodiment of the present invention, FIG. 2 is a plan view showing the arrangement of the pressure-sensitive memory elements, and FIG. 1 is an overall configuration diagram including a pressure-sensitive memory element and an electric circuit in FIG. DESCRIPTION OF SYMBOLS 1 ... Sheet storage battery, 2 ... Position information input part which consists of a pressure-sensitive switch, 3 ... Pressure-sensitive memory element, 12 ... Pressure-sensitive switch, 20 ... Sheet member for position input, 13 ... Element part, 31,3
2, 33, 36, 39 switches, 37 external power supply, 38 discharge resistors, 40 resistors (measurement load), 45 CPU, 46
… Memory, 50 …… Input pen

Claims (1)

(57) [Claims] 1. A pressure-sensitive memory comprising: a sheet-shaped storage battery in which a plurality of storage cells are arranged in a matrix; and a sheet-shaped pressure-sensitive switch for inputting positional information provided on an anode or a cathode current collector of the storage battery. An element, and a charging circuit for charging the storage battery, a discharge circuit for discharging the charge of the storage battery through the pressure-sensitive switch after charging,
A position information input device, comprising: a measurement circuit for measuring a remaining charge amount of the storage battery after discharging.