×

Interpersonal-introduction signalling system

  • US 4,173,016 A
  • Filed: 01/04/1973
  • Issued: 10/30/1979
  • Est. Priority Date: 01/04/1978
  • Status: Expired due to Term
First Claim
Patent Images

1. An interpersonal-signal apparatus for selective signalling of at least two persons each having a small portable transceiver adapted for personal use and selectively operable as a request unit and as an acknowledge unit, said transceivers comprising radio signal broadcasters being of a size adapted to be hand carried and attached on human apparel for support such as a conventional shirt pocket, a conventional trouser pocket, a belt and the like, each transceiver comprising a transmission channel and a receiver channel whereby the use of two separate transceivers permits signalling between the two persons, said transmission channel of said one transceiver operating as a request unit including a signal transmission means for broadcasting a first signal having a unique characteristic encoded to a particular personal trait and having selector means for personal selection of the first signal for transmission, said receiver means having a decoding means responsive to a second signal from said acknowledge unit having a unique characteristic encoded to acknowledgement of said first signal, said decoding means being settable to respond to a selected second signal from said acknowledge unit and having selector means to set said decoding means to one of said second signals, said second of the transceivers operating as an acknowledge unit with said decoding means of said receiver channel of said acknowledge unit responsive to said first signal and said transmission channel of said acknowledge unit broadcasting said second signal, means to indicate an output of said request unit decoding means and said first and second transceiver means include signal modifying means to increase the signal level as the distance between a pair of transceivers approach each other for directing the requesting and acknowledging persons to facilitate movement toward each other and including decoy means for establishing a false signal condition and including means to disconnect the signal modifying means thereby thwarting such facilitated movement.

View all claims
  • 0 Assignments
Timeline View
Assignment View
    ×
    ×