Abstract A wireless call system is provided which includes a central transmitter that is activated by the operation of any one of a multiplicity of switches respectively located at the different tables or booths at a cocktail lounge, restaurant or the like. The actuation of any one of the switches causes the transmitter to transmit a signal of a particular distinctive frequency identifying the table at which the particular switch was operated. A receiver is mounted on the waitress'' tray which responds to the signals transmitted by the transmitter and which is coupled to a plurality of indicating lights mounted on the tray relating to the different tables or booths. Selective means is included in the receiver circuit, so that when a particular switch at a particular table is operated, a corresponding light on the waitress'' tray is energized so as to inform the waitress that service is desired at the designated booth or table.
A call system for use in an area having a plurality of stations, in which said stations correspond to tables in a cocktail lounge, restaurant or the like, said call system including: a transmitter; a plurality of manually-actuable controls connected to said transmitter and located respectively at the different tables in the area, said controls being manually-actuable to cause the transmitter to transmit different signals respectively identifying the different tables of said plurality; a portable tray; a receiver mounted on said tray for intercepting the different signals transmitted by the transmitter and including a plurality of separate indicating lights on said tray, and signal selective means for passing the different signals selectively to said indicating lights to cause said indicating lights to be individually illuminated to identify the tables at which any of said control signals have been actuated.
Claim 2
Dependent Claim
139 words
A call system for use in an area having a plurality of stations, in which said stations correspond to tables in a cocktail lounge, restaurant or the like, said call system including: a transmitter; a plurality of manually-actuable controls connected to said transmitter and located respectively at the different tables in the area, said controls being manually-actuable to cause the transmitter to transmit different signals respectively identifying the different tables of said plurality; a portable tray; a receiver mounted on said tray for intercepting the different signals transmitted by the transmitter and including a plurality of separate indicating lights on said tray, and signal selective means for passing the different signals selectively to said indicating lights to cause said indicating lights to be individually illuminated to identify the tables at which any of said control signals have been actuated.
Claim 3
Dependent Claim
17 words
The call system defined in claim 1, in which said different signals constitute signals having different frequencies.
Claim 4
Dependent Claim
26 words
The call system defined in claim 1, in which said transmitter transmits said signals to said receiver by inductive coupling between the transmitter and the receiver.
Claim 5
Dependent Claim
21 words
The call system defined in claim 1, in which said transmitter transmits said signals to said receiver by radio electric-magnetic transmission.
Claim 6
Dependent Claim
26 words
The call system defined in claim 1, and which includes manually operable switching means mounted on said tray in circuit with each of said indicating lights.