Patent JPS522365A successfully refreshed from Google Patents.
JPS522365A
Expired / Lapsed
JP
⏱️ 0.0 years remaining
Variable attenuator circuit
Assignee: Hitachi Ltd
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Filing: 1975-06-24
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Granted: —
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Expires: 1995-06-24
Abstract
Abstract PURPOSE:To improve control straight-line characteristics, by using IC circuits for a variable band pass filter BPF of voice recording playback equipment, a variable tuning circuit of a receiver, and the like.
Inventors
- 👤 Shinichi Ohashi
- 👤 Akihiro Asada
Bibliographic Details
Application Number
—
Jurisdiction
JP
Data Source
google_patents
Last Synchronized
2026-11-07 15:38
CPC Classifications
H; H03; H03G; H03G1/00; H03G1/0005; H03G1/0017; H03G1/0023
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
JPS4869458A
Cited
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