Abstract: A mobile terminal includes: a processor that acquires a type of a product sold by weight; and a transceiver connected to the processor and that establishes intercommunication with a weighing device that weighs the product sold by weight; a storage connected to the processor. The processor causes the transceiver to acquire, from the weighing device, a weight value of the product sold by weight weighed by the weighing device. The processor registers, in the storage, the type of the product and the weight value that corresponds to the type of the product.

Abstract: A self-checkout system includes: a checkout device that checks out a product registered by a portable terminal; a camera that captures an image of a scene where a customer attempts to resister the product; a detector that detects a registration failure state where registration of the product is determined to have failed during a period in which the registration of the product according to a single transaction is attempted; and a display that displays, during a period in which the checkout device is checking out the product registered according to the single transaction, the detected registration failure state.

Abstract: A sales-data processing device includes: a registering circuit that registers a product and generates registration data; a settlement processing circuit that executes settlement processing using the registration data; a sending circuit that sends the registration data to another sales-data processing device for execution of the settlement processing by the other sales-data processing device using the registration data; and a prohibiting circuit. Once the sales-data processing device has determined that the sending circuit will send the registration data, the prohibiting circuit prohibits the settlement processing circuit from executing the settlement processing before the sending circuit sends the registration data.

Abstract: A mobile terminal includes: a processor that acquires a type of a product sold by weight; and a transceiver connected to the processor and that establishes intercommunication with a weighing device that weighs the product sold by weight; a storage connected to the processor. The processor causes the transceiver to acquire, from the weighing device, a weight value of the product sold by weight weighed by the weighing device. The processor registers, in the storage, the type of the product and the weight value that corresponds to the type of the product.

Abstract: A sales-data processing device includes: a registering circuit that registers a product and generates registration data; a settlement processing circuit that executes settlement processing using the registration data; a sending circuit that sends the registration data to another sales-data processing device for execution of the settlement processing by the other sales-data processing device using the registration data; and a prohibiting circuit. Once the sales-data processing device has determined that the sending circuit will send the registration data, the prohibiting circuit prohibits the settlement processing circuit from executing the settlement processing before the sending circuit sends the registration data.

Abstract: The present invention provides an item registration apparatus and a measuring device cooperating with a mobile terminal to allow smooth registration of sold-by-weight items being purchased by a customer. The item registration apparatus comprises: a measuring device having a weighing tray on which an item is put; and a mobile terminal which can be connected to the measuring device via communication channel (access point or the like). When the item is put on said weighing tray of the measuring device and the measurement of the item is thus completed, the measuring device transmits transaction information of the measured item to the mobile terminal via the communication channel so that the transaction information is stored. This eliminates printing of code information on a label issued from the measuring device and operation of scanning the printed code information by using the mobile terminal.

Abstract: The present invention provides an item registration apparatus and a measuring device cooperating with a mobile terminal to allow smooth registration of sold-by-weight items being purchased by a customer. The item registration apparatus comprises: a measuring device having a weighing tray on which an item is put; and a mobile terminal which can be connected to the measuring device via communication channel (access point or the like). When the item is put on said weighing tray of the measuring device and the measurement of the item is thus completed, the measuring device transmits transaction information of the measured item to the mobile terminal via the communication channel so that the transaction information is stored. This eliminates printing of code information on a label issued from the measuring device and operation of scanning the printed code information by using the mobile terminal.