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US 6,445,279 B1Granted
Variable resistance device
AssigneeDarfon Electronics Corp.
InventorsChao-Jung Lin, Chien-Ming Li
Life of this patent
Estimating the term…
Abstract
A variable resistance device is provided. Instead of a conventional planar-type structure or a three-dimensional structure using an elastic strip, a variable resistance device with a three-dimensional structure using easy-assembling parts, such as a mount and a spring, is adapted. The easy-assembling parts would not be deformed permanently so that the reliability of the variable resistance device is enhanced.
Claims20
A variable resistance device, comprising:
- a substrate with a resistive region forming thereupon;
- and
- a rotor rotatably disposed on the substrate, the rotor having:
- a first contact member having a first end and a second end, wherein the first end abuts the resistive region in an elastic manner;
- a mount, having a through hole for receiving the first contact member so that the first end of the first contact member passes through the through hole to be in contact with the resistive region;
- a rotating member engaging with the mount;
- and
- a second contact member, disposed between the mount and the rotating member, abutting the second end of the first contact member in a movable manner.
5 more elements
A variable resistance device, comprising:
- a substrate with a resistive region forming thereupon;
- and
- a rotor rotatably disposed on the substrate, the rotor having:
- a first contact member having a first end and a second end, wherein the first end abuts the resistive region;
- a mount, having a through hole for receiving the first contact member so that the first end of the first contact member passes through the through hole to be in contact with the resistive region;
- a rolating member engaging with the mount;
- a second contact member, disposed between the mount and the rotating member, abutting the second end of the first contact member in a movable manner;
- and
- a cushion member, disposed between the second contact member and the rotating member, for cushioning the contact between the first contact member and the resistive region.
6 more elements
A variable resistance device, comprising:
- a substrate with a resistive region forming thereupon;
- and
- a rotor rotatably disposed on the substrate, the rotor having:
- a first contact member having a first end and a second end, wherein the first end abuts the resistive region in an elastic manner;
- a mount having a first through hole and a receiving portion for receiving the first contact member, wherein a rotating member passes through the first through hole to engage with the mount;
- and
- a conducting interface formed on a surface, abutting the mount, of the rotating member, wherein the conducting interface abuts the second end of the first contact member in moveable manner.
4 more elements
A variable resistance device, comprising:
- a substrate with a resistive region forming thereupon;
- and
- a rotor rotatably disposed on the substrate, the rotor having:
- a first contact member having a first end and a second end, wherein the first end abuts the resistive region in an elastic manner;
- a mount having a through hole for receiving the first contact member so that the first end of the first contact member passes through the through hole to be in contact with the resistive region;
- a rotating member engaging with the mount;
- and
- a conducting interface formed on a surface, abutting the mount, of the rotating member, wherein the conducting interface abuts the second end of the first contact member in a moveable manner.
5 more elements
Dependencies are inferred from the claim text.