Title:
NON-CONTACT FADER
Document Type and Number:
Japanese Patent JPH04334203
Kind Code:
A
Abstract:
PURPOSE: To improve operability by eliminating the turbulence of output caused by a contact defect, easily setting various characteristics, to directly controlling the fader system of a digital system without using the parts of an A/D converter and the like, and to freely setting torque at the time of moving a lever.
CONSTITUTION: The lever 6 positions a light emitting board 3 and a light receiving board 6, both of which supply light to a slit board 2 where position information (holes, an example 8) is formed so as to read position information without contacting. The digital signal of a signal corresponding to the position information is generated.
Inventors:
FUJII MASANORI
Application Number:
JP10575491A
Publication Date:
November 20, 1992
Filing Date:
May 10, 1991
Export Citation:
Assignee:
JAPAN BROADCASTING CORP
International Classes:
H03G3/00; (IPC1-7): H03G3/00
Attorney, Agent or Firm:
Hidekazu Miyoshi (5 others)