| 摘要 |
A one-off code is allocated, preferably a number, to each sales line. This is one-off, in terms of time or location. Related audio product information is broadcast by radio. Additional information is transmitted by radio, representing the allocated code. This takes place simultaneously or sufficiently close in time, to allow correspondence to be made between the data. Reception is through a number of radio reception stations. Code information recovered, is displayed at each radio station. One or more customers order or purchase the line (product or service), motivation having been provided by the audio information. Ordering or selling are assisted by the displayed one-time code.
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