HANDHELD REMOTE COMPUTER CONTROL AND METHODS FOR SECURED INTERACTIVE REAL-TIME TELECOMMUNICATIONS

摘要

An user device (120) generates telecommunications signals for communication to a host server (110). The user device (120) includes a bar code reader (121) and a mixer for coupling bi-directional voice and data signals to a communication transceiver (123), along a path (131). The user device (120) further includes a key pad (127), a display (126), a microphone (129), a speaker (128), an amplifier and mixer (141), and a protected memory (128). The host server (110) includes an order processing element (111), a sound processing element (112), a synthesizer (114), and a modem (113). The user device (120) is handheld and low-power.