Mobile terminal with automatic calling feature

• US 5,678,190 A
• Filed: 11/16/1994
• Issued: 10/14/1997
• Est. Priority Date: 03/17/1994
• Status: Expired due to Term

• Current Assignee: Fujitsu Limited
• Original Assignee: Fujitsu Limited
• Inventors: Konno, Masahiro, Ishida, Makoto, Hanawa, Tetsuya
• Primary Examiner(s): Eisenzopf, Reinhard J.
• Assistant Examiner(s): LE, THANH C
• Application Number:
  US08/340,734
• Time in Patent Office: 1,063 Days
• Field of Search: 455/33.2, 455/34.2, 455/54.1, 455/54.2, 455/56.1, 379/59, 379/60, 379/216, 379/355
• US Class Current: 455/516
• CPC Class Codes: H04M 1/2749 Automatic dialling or redialling systems, e.g. on off-hook or redial on busy
• CPC Class Codes: H04W 76/10 Connection setup
• CPC Class Codes: H04W 88/02 Terminal devices

Abstract

When frequencies are being scanned to seize a control channel immediately after the end of a call, if there arises a call request, the call request is stored, and a calling operation is automatically initiated after a control channel has been seized. When a call request is stored, if a predetermined length of time has elapsed before a control channel is seized, the stored call request is discarded.

Claims

1. A mobile terminal comprising:

means for seizing a control channel by scanning through frequencies;

means for storing a call request that arises during the time that said control channel seizing means is scanning through frequencies; and

means for automatically initiating a calling operation after said control channel seizing means has seized a control channel when said call request is stored by said call request storing means.

2. A mobile terminal according to claim 1, wherein said automatic calling operation initiating means includes means for detecting the seizure of the control channel by said control channel seizing means, and means for initiating the calling operation after said seizure detecting means detects the seizure of the control channel.

3. A mobile terminal according to claim 2, wherein said automatic calling operation initiating means further includes means for measuring the time elapsed since said control channel seizing means started scanning through frequencies, and means for discarding said call request when the elapsed time being measured by said elapsed time measuring means reaches a predetermined time before said seizure detecting means detects the seizure of the control channel.

4. A mobile terminal according to claim 1, wherein said automatic calling operation initiating means includes means for measuring the time that has elapsed since said control channel seizing means started scanning through frequencies, and means for initiating the calling operation when the elapsed time being measured by said elapsed time measuring means reaches a predetermined time.

5. A mobile terminal according to claim 4, wherein said automatic calling operation initiating means further includes means for discarding said call request if said control channel seizing means has not seized the control channel when the elapsed time being measured by said elapsed time measuring means reaches the predetermined time.