Ultrasonic shelf label method and apparatus

Details Ultrasonic shelf label method and apparatus Ultrasonic shelf label method and apparatus

1993-06-21

1995-08-15

Yusko, Donald J.

Communications: electrical

Continuously variable indicating

With meter reading

34082554, 34082517, G06F 704

Patent

active

054423430

ABSTRACT:
An apparatus and method for ultrasonically communicating information from a source to a destination and for acknowledging receipt of that information by the destination. The apparatus includes at least one processor, at least one transceiver, and at least one display device, each display device having a unique identifier. The processor communicates information for broadcast to the transceiver. The processor also performs digital signal processing for detecting an acknowledgement signal within a narrow bandwidth. The transceiver ultrasonically broadcasts an identifier and associated data to display devices within the broadcast area, and also receives ultrasonic signals. A display device includes a transducer, a comparator, a memory, a display panel, and logic. In the communication method, a processor, a transceivers, and a display device communicate by initially associating data with a unique display device identifier. The processor communicates the identifier/data pair to the transceiver, which in turn ultrasonically broadcasts the identifier and associated data to display devices within the broadcast range. If the received identifier matches the unique identifier of the display device, then an acknowledgement signal is generated and the data is displayed at the display device. The processor determines whether the acknowledgement signal was generated within a defined bandwidth by performing digital signal processing.

REFERENCES:
patent: 4002886 (1977-01-01), Sundelin
patent: 4139149 (1979-02-01), Crepeau et al.
patent: 4213199 (1980-07-01), Labaw et al.
patent: 4322611 (1982-03-01), Edelman
patent: 4415065 (1983-11-01), Sandstedt
patent: 4500880 (1985-02-01), Gomersall et al.
patent: 4673932 (1987-06-01), Ekchian et al.
patent: 4677777 (1987-07-01), Hoffman et al.
patent: 4766295 (1988-08-01), Davis et al.
patent: 4821291 (1989-03-01), Stevens et al.
patent: 4879756 (1989-11-01), Stevens et al.
patent: 4888709 (1989-12-01), Revesz et al.
patent: 4924564 (1990-05-01), Shah
patent: 4937586 (1990-06-01), Stevens et al.
patent: 4955000 (1990-09-01), Nastrom
patent: 4962466 (1990-10-01), Revesz et al.
patent: 4973952 (1990-11-01), Malec et al.
patent: 5019811 (1991-05-01), Olsson et al.
patent: 5111196 (1992-05-01), Hunt
patent: 5158310 (1992-10-01), Tannehill et al.
patent: 5198644 (1993-03-01), Pfeiffer et al.

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