Multifunction earphone-microphone device
AssigneeMatsushita Electric Industrial Co., Ltd.
InventorsManabu Matsuo, Masaki Hoshino
Life of this patent
Estimating the term…
Abstract
A microcomputer is provided in an earphone-microphone device for the purpose of controlling the transmission/receipt of data with respect to a portable cellular phone by way of a serial data signal line and a serial clock signal line, the operation of a liquid crystal device driver, and the operation of a drive circuit of a vibrator. As a result, an earphone-microphone device itself can perform typical functions of the cellular phone, such as retrieval of phone-number-related data stored in the cellular phone, displaying of the thus-retrieved data, origination of a call to the called party indicated on a display, and actuation of the vibrator when there is an arrival of an incoming call.
Claims4
A multifunction earphone-microphone device comprising:
- an interface, said interface comprising a plug that is adapted for connection to, and disconnection from, a portable cellular phone;
- and
- a display/operation section including a rotary jog dial, said display/operation section being operable to display a phone-number-related data set that is stored in the portable cellular phone, said phone-number-related data set being communicated to the display via the interface while said interface is connected to the portable cellular phone.
Dependencies are inferred from the claim text.