Tactile presentation apparatus and tactile presentation knob

Patent metadata

Field	Value
Publication number	US-2023010984-A1
Application number	US-201917779142-A
Country	US
Kind code	A1
Filing date	Dec 26, 2019
Priority date	Dec 26, 2019
Publication date	Jan 12, 2023
Grant date	—

Abstract

Regarding a tactile presentation panel, a tactile presentation panel that has a tactile presentation knob having a conductive member placed on an operation surface and presents a tactile sense to a user via the tactile presentation knob includes a movement amount calculation circuit that calculates a movement amount of the tactile presentation knob from current coordinates on the tactile presentation panel of the tactile presentation knob and past coordinates of the tactile presentation knob, a tactile strength calculation circuit that calculates a tactile strength to be applied to the user based on the movement amount, and a tactile presentation circuit that sets a voltage signal waveform based on the tactile strength. The movement amount is at least one of a rotation angle and a rotation speed of the tactile presentation knob.

First claim

1 . A tactile presentation apparatus that has a tactile presentation knob having a conductive member placed on an operation surface and presents a tactile sense to a user via the tactile presentation knob, the tactile presentation apparatus comprising:
a movement amount calculation circuit that calculates a movement amount of the tactile presentation knob from current coordinates on the tactile presentation apparatus of the tactile presentation knob and past coordinates of the tactile presentation knob; a tactile strength calculation circuit that calculates a tactile strength to be applied to the user based on the movement amount; a tactile presentation circuit that sets a voltage signal waveform based on the tactile strength; and a tactile sense condition storage apparatus that stores a relationship with the tactile strength based on the movement amount and a relationship between the tactile strength and the voltage signal waveform, wherein the movement amount includes at least one of a rotation angle and a rotation speed of the tactile presentation knob.

2 . The tactile presentation apparatus according to claim 1 , further comprising:
a touch panel, wherein the tactile presentation apparatus functions as a tactile presentation touch panel.

3 . The tactile presentation apparatus according to claim 2 , further comprising:
a display screen processing circuit that changes a display screen displayed on a display apparatus based on the movement amount.

4 . The tactile presentation apparatus according to claim 3 , wherein
the display apparatus is provided separately from the tactile presentation apparatus.

5 . The tactile presentation apparatus according to claim 3 , further comprising:
a display condition storage apparatus that stores a relationship between content of processing of the display screen and processing of the display screen based on the movement amount.

6 . The tactile presentation apparatus according to claim 5 , wherein
the display condition storage apparatus stores a relationship with processing of the display screen based on the movement amount as a pattern, and the display screen processing circuit operates based on the pattern.

7 . The tactile presentation apparatus according to claim 1 , wherein
the tactile presentation circuit changes an operation feeling according to the rotation speed.

8 . The tactile presentation apparatus according to claim 1 , wherein
the tactile sense condition storage apparatus stores a relationship with the tactile strength based on the movement amount as a pattern, and the tactile strength calculation circuit operates based on the pattern.

9 . The tactile presentation apparatus according to claim 8 , wherein
in a case where the movement amount of the tactile presentation knob is the rotation angle, the pattern includes:
a first pattern corresponding to rotation in a first direction of the tactile presentation knob; and
a second pattern corresponding to rotation in a second direction opposite to the first direction,
the first direction is a direction away from an initial position, the second direction is a direction approaching the initial position, the first pattern and the second pattern are different, and presented is a tactile sense for sensing approach to at least one of the initial position and a termination region of an operation range of the tactile presentation knob by the first pattern and the second pattern.

10 . The tactile presentation apparatus according to claim 9 , wherein
the first pattern is a pattern in which the tactile strength increases as the rotation angle from the initial position of the tactile presentation knob increases.

11 . The tactile presentation apparatus according to claim 9 , wherein
in the first pattern, degree of increase in the tactile strength in a peripheral region of the initial position of the tactile presentation knob is larger than that in the termination region of an operation range of the tactile presentation knob.

12 . The tactile presentation apparatus according to claim 9 , wherein
in the first pattern, degree of increase in the tactile strength in a peripheral region of the initial position of the tactile presentation knob is smaller than that in the termination region of an operation range of the tactile presentation knob.

13 . The tactile presentation apparatus according to claim 9 , wherein
the first pattern is a pattern in which the tactile strength decreases as the rotation angle from the initial position of the tactile presentation knob increases.

14 . The tactile presentation apparatus according to claim 9 , wherein
the first pattern is a pattern in which the tactile strength increases as the rotation angle from the initial position increases up to a set rotation angle, and the tactile strength discontinuously decreases when the set rotation angle is exceeded.

15 . The tactile presentation apparatus according to claim 14 , further comprising:
a display screen processing circuit that changes a display screen to be displayed on a display apparatus based on the movement amount, wherein the display screen processing circuit stops change of the display screen when the set rotation angle is exceeded.

16 . The tactile presentation apparatus according to claim 9 , wherein
the first pattern is a pattern in which the tactile strength does not change in a peripheral region of the initial position of the tactile presentation knob.

17 . The tactile presentation apparatus according to claim 9 , wherein
the second pattern is a pattern in which the tactile strength decreases from the tactile strength of the tactile presentation knob in the first pattern to a predetermined first tactile strength.

18 . The tactile presentation apparatus according to claim 17 , wherein
the second pattern is a pattern in which the tactile strength increases from the first tactile strength to a predetermined second tactile strength at the initial position of the tactile presentation knob.

19 . The tactile presentation apparatus according to claim 17 , wherein
the second pattern is a pattern in which the tactile strength increases from the first tactile strength toward a predetermined second tactile strength as the initial position of the tactile presentation knob is closer.

20 . The tactile presentation apparatus according to claim 8 , wherein
in a case where the movement amount of the tactile presentation knob is the rotation speed, the pattern includes:
a first pattern of an acceleration direction of the tactile presentation knob; and
a second pattern in a stop direction of the tactile presentation knob, and the first pattern and the second pattern are different.

21 . The tactile presentation apparatus according to claim 20 , wherein
the first pattern is a pattern in which the tactile strength decreases as the rotation speed increases from a stop state of the tactile presentation knob.

22 . The tactile presentation apparatus according to claim 20 , wherein
the first pattern is a pattern in which the tactile strength does not change up to a set rotation speed.

23 . The tactile presentation apparatus according to claim 20 , wherein
the first pattern is a pattern in which the tactile strength discontinuously decreases when a set rotation speed is exceeded.

24 . The tactile presentation apparatus according to claim 1 , wherein
the tactile strength is changed as

Assignees

• Mitsubishi Electric Corp

Inventors

• Hayashi Masami
• Orita Tae
• Ueno Yoshinori
• Sakai Mitsuru
• Numata Naoki
• Furumoto Yuki
• Sempuku Tsuyoshi
• Sasaki Yuichi

Classifications

• G06F3/0383 Primary

  Signal control means within the pointing device · CPC title

• G06F3/016

  Input arrangements with force or tactile feedback as computer generated output to the user · CPC title

• G06F3/041

  Digitisers, e.g. for touch screens or touch pads, characterised by the transducing means · CPC title

• G06F3/0227 Primary

  Cooperation and interconnection of the input arrangement with other functional units of a computer (G06F3/023 - G06F3/037 take precedence) · CPC title

• G06F3/038

  Control and interface arrangements therefor, e.g. drivers or device-embedded control circuitry · CPC title