§
PatentCue
Patent Intelligence
Join Waitlist Sign In
Patent EP0451406A1 successfully refreshed from Google Patents.
← Back to Patent Explorer
EP0451406A1 Expired / Lapsed EP ⏱️ 0.0 years remaining

Electronic device with removable operating unit

Assignee: Pioneer Corp
•
Filing: 1990-11-02
•
Granted: —
•
Expires: 2010-11-02
📄 Original PDF 🌐 Google Patents 🔄 Sync Now

Abstract

Abstract An electronic device has an operating section (11) having a plurality of input keys (12). The operating section is detachably connected to a body (1) of the device in such a manner that the contacts of the operating section are electrically connected to the contacts of the body when the operating section is connected to the body. The body includes a connection detecting section (2) for detecting the connection of the operating section to the body to output a connection detection signal. A control section (3,5) makes the connection of the contacts of the body and of the operating section effective a predetermined period of time after provision of the connection detection signal.

Inventors

  • 👤 Yoshiro Pioneer Electronic Corporation Aoyanagi
  • 👤 Mayumi Pioneer Electronic Corporation Sato

Bibliographic Details

Application Number —
Jurisdiction EP
Data Source google_patents
Last Synchronized 2026-11-08 08:36
CPC Classifications
G; G11; G11B; G11B33/00; G11B33/02; G11B33/027; B; B60; B60R; B60R11/00; B60R11/02; B60R11/0205; G11B17/00; G11B17/02; G11B17/04; G11B17/0401; G11B17/0405; B60R2011/0096; B60R2011/0098

Claims Analysis

Total Claims: 5
Claim 1
Independent Claim 131 words
An electronic device having an operating section (11) which has a plurality of input keys (12) and which is detachably connected to a body (1) of the electronic device in such a manner that contacts of the operating section are electrically connected to contacts of the body when the operating section is connected to the body, characterised in that the body (1) comprises: connection detecting means (2) for detecting the connection of the operating section to the body and providing a connection detection signal when such connection has been detected; and, control means (3,5) for making the connection of the contacts of the body (1) and of the operating section (11) effective a predetermined period of time after the connection detection means provides the connection detection signal to the control means.
Claim 2
Dependent Claim 20 words
A device according to claim 1, further characterised in that the connection detecting means (2) involves a push button (2a).
Claim 3
Dependent Claim 18 words
A device according to claim 1, further characterised in that the connection detecting means (2) involves a photosensor.
Claim 4
Independent Claim 22 words
A device according to any of claims 1 to 3, further characterised in that the predetermined period of time is five seconds.
Claim 5
Independent Claim 70 words
A device according to any of claims 1 to 4, wherein the control means further comprises: timer means (3) for producing a timer output signal a predetermined period of time after the connection detecting means detects the physical connection; and, control section means (5) for allowing the body section means (1) to receive and carry out the commands input from the keys (12) upon production of the timer output signal.

References Cited (Backward Citations)

EP0249071A1 Cited
EP0253947A2 Cited
DE8707406U1 Cited
EP0365109A1 Cited
DE4008536A1 Cited

USPTO Annuity & Maintenance Windows

Maintenance schedule is calculated for granted US utility patents.

Assigned Categories & Tags

No categories assigned to this patent yet.

Assign Category Tag