Patent ID: 11972409
Assignee: NCR VOYIX CORPORATION
Field: IT methods for management (Electrical engineering)
Classification: CPC G | IPC G

Claim 0:
1. A signal retransmission device for converting an environmental signal at a checkout terminal to a transmission signal, comprising:
a sensor apparatus detecting the environmental signal present around the checkout terminal during a transaction associated with a checkout at the checkout terminal, the sensor apparatus operatively in communication with a controller, wherein the sensor apparatus registers a change in voltage upon detection of the environmental signal, wherein the environmental signal is generated by the checkout terminal when an item is detected by the scanner during the transaction;
a transmission device, operatively in communication with the controller, wherein the transmission device generates the transmission signal as a response to the environmental signal detected by the sensor apparatus; and
the controller analyzing the change in voltage to the detected environmental signal based on a predetermined voltage change associated with a predetermined transmission signal to determine the transmission signal and to validate the detected environmental signal, a plurality of the predetermined change to transmission associations being stored at a storage unit;
wherein the transmission signal adapted to be captured in multiple images by a camera during the checkout;
wherein a scanner status that was originally communicated by the scanner through the environment signal is extracted from the multiple images and correlated with the item, the transaction, and the checkout;
wherein the controller is adapted to monitor the transmission device from the transmission signal based on an estimated light level and black level detected in the multiple images and automatically calibrate the transmission device when the light level and the black level are outside the estimated light level and black level, wherein the transmission device comprises pairs of light emitting diodes (LEDS), and wherein at least at least one of the pairs is always on, wherein a determination as to which pair is on and which pair is off is based on pixel intensity scores and ratios of the intensity scores between the pairs, wherein when a given ratio of intensity is greater than 1 the corresponding pair associated with a numerator in the given ratio is on and the corresponding pair associated with the denominator is off, and when a corresponding ratio approaches 1 an error condition is raised indicating a problem was detected for the transmission device.