Joystick controller using magnetosensitive elements with bias magnets

Patent 4500867 Issued on February 19, 1985. Estimated Expiration Date:

June 11, 2004. Estimated Expiration Date is calculated based on simple USPTO term provisions. It does not account for terminal disclaimers, term adjustments, failure to pay maintenance fees, or other factors which might affect the term of a patent.

Abstract Claims Description Full Text

Patent References

3331972

3372359

3760320

Balance control for use in 4-channel stereophonic system
Patent #: 3939451
Issued on: 02/17/1976
Inventor: Kasahima

Device for simultaneously controlling a plurality of variable resistors Patent #: 3942148
Issued on: 03/02/1976
Inventor: Nishioka

Inventors

Assignee

NEC Kansai, Ltd.

Application

No. 06/619719 filed on 06/11/1984

US Classes:

338/128, Plural200/6A, Universally pivoted handle338/32R, Magnetic field or compass (e.g., Hall effect type)345/161, Joystick73/471With vibratable mount feature

Examiners

Primary: Envall, Roy N. Jr.
Assistant: Sears, C. N.

Attorney, Agent or Firm

International Classes

G05G 9/00 (20060101)
G05G 9/047 (20060101)
G01D 5/16 (20060101)
G01D 5/12 (20060101)

Foreign Application Priority Data

1982-01-13 JP

Abstract

A joystick controller of the electrically non-contact type is provided with a pair of magnetosensitive elements having a magnetresistive effect. The magnetosensitive elements are placed fixedly on a stator member in a given relation at right angles to detect the rotary motion of a permanent magnet embedded in a rotor member movably supported by the stator member. Each of the magnetosensitive elements is supplied by a constant bias magnetic field generated by added magnets on the stator member to improve the sensing characteristics of the controller. In addition, a spring sheet member is assembled between surfaces of the rotor and stator members to afford appropriate feeling and handling for operation of the lever.