Apparatus for the transmission and reception of data

• US 5,247,566 A
• Filed: 09/02/1992
• Issued: 09/21/1993
• Est. Priority Date: 03/15/1990
• Status: Expired due to Fees

• Current Assignee: Aisin Seiki Co., Ltd. (Aisin Corp.)
• Original Assignee: Aisin Seiki Co., Ltd. (Aisin Corp.)
• Inventors: Hiramatsu, Shoji
• Primary Examiner(s): Kuntz, Curtis
• Assistant Examiner(s): Cumming, William D.
• Application Number:
  US07/938,585
• Time in Patent Office: 384 Days
• Field of Search: 379/56, 379/58, 379/60, 379/63, 455/39, 455/49, 455/53, 455/54.1, 455/55.1
• US Class Current: 455/557
• CPC Class Codes: H04W 88/02 Terminal devices

Abstract

An apparatus for the transmission and reception of data that has signal lines that provide a connection between the movable car telephone and the handset, a mechanism to acknowledge "off hook" signals and "on hook" signals, and a recovery mechanism that resets the operation based upon signals transmitted along the aforesaid signal lines after the aforesaid "off hook" signals and the aforesaid "on hook" signals in an apparatus for the tramsission and reception of data that performs different operations depending upon what the mechanism for acknowledgement of "off hook" signals and "on hook" signals has detected.

Claims

1. An apparatus for the transmission and reception of data, the apparatus having a signal line for providing a connection between a movable car telephone and a handset, the apparatus comprising:

transmitter means for transmitting off-hook and on-hook signals on the signal line, and for transmitting a signal after the transmission of one of the off-hook and on-hook signals;

acknowledge means for recognizing a mode of operation of the apparatus by detecting one of the off-hook and on-hook signals transmitted on the signal line by said transmitter means; and

recovery means for establishing the mode of operation of the apparatus according to a signal transmitted after the transmission of one of the off-hook and on-hook signals, said recovery means operable for establishing the mode of operation of the apparatus if said acknowledgement means fails to recognize the mode of operation of the apparatus by failing to detect one of the off-hook and on-hook signals transmitted on the signal line.

2. The apparatus as defined in claim 1, further comprising a facsimile machine, and a CPU, and wherein said CPU includes said acknowledgement means and said recovery means.