Cellular telephone with keypad controller

Claim 1

Cellular telephone apparatus having a plurality of operating modes and being operable on cellular radio channels, and cellular telephone apparatus comprising: a data bus having first and second ports; a transceiver including a first microcomputer for controlling the operating modes and communicating cellular telephone calls on the cellular radio channels; a controller having a plurality of keys including ten numerical keys for entering telephone numbers and including a memory key for controlling the operating modes of the cellular telephone apparatus; a second microcomputer including a memory and being coupled to the controller for detecting activations of individual keys to receive telephone number digits and for detecting concurrent activations of predetermined key sequences to select a corresponding one of the operating modes, the predetermined key sequences including the memory key and another key, said second microcomputer storing each received digit in the memory, and said second microcomputer further being coupled to the first port of said data bus for automatically transmitting the stored digits or the selected one of the operating modes to the cellular transceiver when the elapsed time from detection of the last activated key exceeds a predetermined time interval; and said first microcomputer coupled to the second port of said data bus for receiving the selected one of the operating modes and applying the received operating mode to the cellular transceiver, and receiving the transmitted digits and automatically transmitting the received digits on one of the cellular radio channels to originate a telephone call, whereby all dialed digits of each telephone number are automatically transmitted when dialing is interrupted for at least the predetermined time interval.

Claim 13

A method of operating a radiotelephone having a plurality of operating modes, the radiotelephone including a controller coupled by a microcomputer with a memory to a cellular transceiver, the cellular transceiver being operable on cellular radio channels for communicating cellular telephone calls, and the controller including ten numerical keys for entering telephone numbers and including a memory key and an end key for controlling the operating modes of the radiotelephone, said method comprising the steps of: detecting concurrent activation of at least two keys to select a power-on mode and applying power to said cellular transceiver; detecting activations of individual keys and concurrent activations of predetermined key sequences to receive telephone number digits and to select a corresponding one of the operating modes, respectively, the predetermined key sequences including the memory key and another key; storing each received telephone number digit in the memory; automatically transmitting all of the stored telephone number digits on one of the cellular radio channels when the elapsed time from detection of the last activated key exceeds a predetermined time interval to originate a telephone call; and ending a telephone call when activation of the end key is detected.

Claim 14

A method of operating a radiotelephone having a plurality of operating modes, the radiotelephone including a controller coupled by a microcomputer with a memory to a cellular transceiver, the cellular transceiver being operable on cellular radio channels for communicating cellular telephone calls, and the controller including ten numerical keys for entering telephone numbers and including a memory key and an end key for controlling the operating modes of the radiotelephone, said method comprising the steps of: detecting concurrent activation of at least two keys to select a power-on mode and applying power to said cellular transceiver; detecting activations of individual keys and concurrent activations of predetermined key sequences to receive telephone number digits and to select a corresponding one of the operating modes, respectively, the predetermined key sequences including the memory key and another key; storing each received telephone number digit in the memory; automatically transmitting all of the stored telephone number digits on one of the cellular radio channels when the elapsed time from detection of the last activated key exceeds a predetermined time interval to originate a telephone call; and ending a telephone call when activation of the end key is detected.