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Fixed-point device and electronic appts. set with such fixed-point device

A fixed-point, origin technology, applied in electrical digital data processing, input/output process of data processing, instruments, etc.

Inactive Publication Date: 2004-08-11
NTT DOCOMO INC +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

As disclosed in Japanese Patent Application Publication No. Hei 9-251344, when an area where no control signal is generated is provided around the center of the joystick, the same failure as above occurs

Method used

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  • Fixed-point device and electronic appts. set with such fixed-point device
  • Fixed-point device and electronic appts. set with such fixed-point device
  • Fixed-point device and electronic appts. set with such fixed-point device

Examples

Experimental program
Comparison scheme
Effect test

no. 1 example

[0106] A description will be given below of the operation of the pointing device according to the first embodiment of the present invention.

[0107] figure 1 Shown is a schematic structural view of the pointing device according to the first embodiment of the present invention. The pointing device includes a sliding key 1 , Hall elements 2 ( 2 a , 2 b , 2 c , and 2 d ), a conversion part 3 , a calculation part 4 , and a device processing part 5 .

[0108] The slide key 1 is a key located on an open portion formed to the housing. On the sliding plane, the elastic body holds the sliding key 1 from at least three directions, so that usually the sliding key can be located approximately at the center of the opening. Glide keys can slide on an open plane (x-y plane). The magnet 11 is fixed (built-in, embedded or attached) on the slide key 1 and moves together with the slide key.

[0109]The Hall element 2 is a sensor for detecting a change in magnetic flux density as the magnet ...

no. 2 example

[0145] A description will be given below of the operation of the pointing device according to the second embodiment of the present invention.

[0146] Figure 5 Shown is the structure of the pointing device according to the second embodiment. Same as the first embodiment, the pointing device of this embodiment includes a slide key 1 , a Hall element 2 , a conversion unit 3 , a calculation unit 4 and a device processing unit 5 .

[0147] The calculation unit 4 of this embodiment further includes a normalization unit 43 . The normalizing part 43 normalizes the sliding distance of the sliding key 1, that is, the sliding distance generated by the converting part 3, to output a normalized value "Zr". Furthermore, the device processing part 5 generates a control signal corresponding to the sliding direction of the sliding key 1 with a strength determined by the normalized sliding distance. Other components operate in the same manner as in the first embodiment.

[0148] Such as ...

no. 3 example

[0162] A description will be given below of the operation of the pointing device according to the third embodiment of the present invention.

[0163] Figure 10 Shown is the structure of the pointing device according to the third embodiment. The pointing device includes a sliding key 1 , a Hall element 2 , a converting part 3 , a calculating part 4 , a device processing part 5 and a temperature sensor 6 .

[0164] In the present embodiment, the calculation unit 4 further includes a temperature correction unit 44 in addition to the structure of the pointing device in the second embodiment.

[0165] The temperature correction part 44 corrects the difference in sensitivity of the Hall element 2 according to the change in the ambient temperature using the pointing device.

[0166] The temperature sensor 6 is a sensor for measuring the ambient temperature using a pointing device.

[0167] In this embodiment, the sliding distance and sliding direction of the sliding key 1 are det...

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PUM

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Abstract

When a point where the moving quantity of a slide key is zero is defined as an origin, and the maximum value and minimum value of moving quantity when the slide key is moved until butted to an opening peripheral edge are respectively defined as max-max and min_max, an arithmetic part sets the strength of a control signal as zero when the slide key is positioned in a circular area whose radius is the n / N times of max_max (n and N are arbitrary positive integers and n is less than N) with the original point as a center, and sets the strength of a control signal as strength corresponding to the moving quantity of the slide key when the slide key is positioned in a circular area whose radius is more than n / N times of the max_max and not more than min-max, and sets it as the same strength as the moving quantity of the slide key is min_max when the slide key is positioned in the area whose radius which is more than min_max.

Description

technical field [0001] The present invention relates to an analog pointing device for generating a control signal in response to the direction and distance of an operation and an electronic device equipped with the pointing device, and in particular, relates to a control signal capable of generating a control signal with a fixed strength in response to a specific amount of operation A pointing device and an electronic device that moves the controlled object at a fixed speed on the display screen regardless of the direction of operation. Background technique [0002] Pointing devices such as mice, trackballs, and joysticks are used as input devices to generate control signals in response to control forces in any direction. [0003] In the case of a mobile terminal, the pointing device is mounted on the body of the terminal. Mobile terminals are often equipped with a joystick-type pointing device for generating control signals in response to the amount of tilt of its operatin...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G06F3/033G06F3/0354G06F3/038G06F3/048
CPCG06F3/03548G06F3/04812G06F3/038
Inventor 铃木大辅串田昌幸木内浩行松尾隆司藤原克章
Owner NTT DOCOMO INC