Position indicator
First Claim
1. A pen-shaped position indicator comprising:
- an elongated housing having a distal end and a proximal end;
a rod partially housed in the housing and partially extending from the distal end of the housing to serve as a pen tip;
an axial-pressure sensor configured to detect a pressure applied to the rod along an axial direction of the rod; and
one or more side-pressure sensors interposed between an exterior surface of the rod and an interior surface of the housing and configured to detect a pressure applied to the rod along a side direction different from the axial direction of the rod, whereinthe axial-pressure sensor and the one or more side-pressure sensors are configured to be pressed by a pressure from the rod, said pressure being applied in a direction different from both the axial direction and the side direction of the rod, and the axial-pressure sensor detects an axial-direction component of said pressure and the one or more side-pressure sensors detect a side-direction component of said pressure.
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Accused Products
Abstract
A position indicator includes a capacitor having a capacitance that changes in correspondence to a force applied to one end part of a housing. The capacitor is configured by a pressure detecting chip that includes a first electrode and a second electrode disposed opposite to the first electrode with a predetermined distance defined therebetween to have capacitance Cv formed between the first electrode and the second electrode. The capacitance Cv changes when the force applied to the one end part of the housing is transmitted to the first electrode to thereby change a relationship (e.g., the distance) between the two electrodes. A pressure transmitting member having predetermined elasticity is disposed on the first electrode such that the force applied to the one end part of the housing is transmitted to the first electrode of the semiconductor element via the pressure transmitting member.
45 Citations
17 Claims
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1. A pen-shaped position indicator comprising:
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an elongated housing having a distal end and a proximal end; a rod partially housed in the housing and partially extending from the distal end of the housing to serve as a pen tip; an axial-pressure sensor configured to detect a pressure applied to the rod along an axial direction of the rod; and one or more side-pressure sensors interposed between an exterior surface of the rod and an interior surface of the housing and configured to detect a pressure applied to the rod along a side direction different from the axial direction of the rod, wherein the axial-pressure sensor and the one or more side-pressure sensors are configured to be pressed by a pressure from the rod, said pressure being applied in a direction different from both the axial direction and the side direction of the rod, and the axial-pressure sensor detects an axial-direction component of said pressure and the one or more side-pressure sensors detect a side-direction component of said pressure. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15)
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16. A method of sensing a pressure applied to a pen-shaped position indicator, comprising:
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using an axial pressure sensor, detecting an axial-pressure applied to a rod, which is partially housed in an elongated housing of the pen-shaped position indicator and partially extending from a distal end of the housing, wherein the axial-pressure is applied along an axial direction of the rod; using one or more side-pressure sensors, detecting a side-pressure applied to the rod along a side direction different from the axial direction of the rod; using the axial pressure sensor, detecting an axial-direction component of a pressure applied in a direction different from both the axial direction and the side direction of the rod; and using the one or more side-pressure sensors, detecting a side-direction component of said pressure applied in the direction different from both the axial direction and the side direction of the rod. - View Dependent Claims (17)
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Specification