×

Portable telephone and automobile system

  • US 6,570,689 B1
  • Filed: 09/14/1999
  • Issued: 05/27/2003
  • Est. Priority Date: 09/14/1998
  • Status: Expired due to Term
First Claim
Patent Images

1. A portable telephone comprising:

  • infrared communication means; and

    speech communication mode switching means for switching speech communication modes in accordance with a signal received from a distant system through said infrared communication means.

View all claims
  • 1 Assignment
Timeline View
Assignment View
    ×
    ×