| 摘要 |
A cellular telephone having within a single unit the functions of auto answering, hand-free listening and speaking, low power control, power wake up control, battery protection, and quick charging. The unit includes a number of elements such as an auto-answer and hand-free control element connected to the mainframe of the cellular telephone, a set of control buttons, a microphone, an indictor light, a rectifier and transformer to charge the battery, battery protection circuitry and a speaker. These are mounted on the outside for operation by the user to control the auto-answer and hand-free control element. The unit also includes an encoder/decoder/storage element and two exchanging elements controlled by the control buttons to achieve the specified functions. A "wake-up" facility is provided. |
