Title:
【発明の名称】キーボード操作型装置の選択されたキーを作動させるアクチュエーター装置と方法
Document Type and Number:
Japanese Patent JPS58501670
Kind Code:
A
Abstract:
A magnetoresistive transducer bridge is operated in a saturation mode by an AC signal in an adjacent conductor. The field produced by the AC signal in the adjacent conductor is of sufficient amplitude to magnetically saturate the bridge elements in a pair of opposite arms of the bridge during most of each half cycle of the AC signal. During each zero-crossing of the applied signal, the bridge comes out of saturation and produces a signal pulse. Thus constituting a zero-crossing detector. This response characteristic is utilized in circuitry producing a current-presence detector, a signal amplitude detector, and a power-factor detector.
More Like This:
| WO/2003/047007 | PIEZOELECTRIC USER INTERFACE |
Inventors:
Ha-Zemburg Ralph Dave It
Application Number:
JP50346182A
Publication Date:
October 06, 1983
Filing Date:
October 13, 1982
Export Citation:
Assignee:
Ha-Zembalg Ralph Dave It
International Classes:
B41J5/08; B41J23/22; B41J29/393; F15B11/16; G01R31/00; G06F3/02; (IPC1-7): B41J23/22; G01R31/00; G06F3/02
Attorney, Agent or Firm:
Minoru Nakamura (3 others)