|국가/구분||United States(US) Patent 등록|
|미국특허분류(USC)||364/479.01 ; 222/07 ; 221/09|
|발명자 / 주소|
|출원인 / 주소|
|대리인 / 주소||
|인용정보||피인용 횟수 : 288 인용 특허 : 12|
A vending machine controller having a single serial port on the same chip as the programmable processor. The controller includes a port arbitrator that selectively connects one of several serially communicating devices to this single serial port. The vending machine controller also has multitasking capabilities so that remote price changing, and/or remote reprogramming can be conducted at the same time as a vend operation and/or a multimedia presentation.
[ What is claimed is:] [1.] A vending-machine controller comprising:a programmable processor controlling operation of the vending machine;a first serial port connected to the programmable processor;an arbitrator operable in a hunt mode to monitor an input from each of at least two serially-communicating devices, respectively, to determine that a communication session is being initiated by one of the serially-communicating devices if activity is present upon an input, and to connect the first serial port of the programmable processor to the serially-commu...