Samsung Electronics Co., Ltd.

Seok-Hyo Park

Yong-Gu Lee

Hark-Sang Kim

Jae-Hyoung Jeon

Yeong-Moo Ryu

Jun Ho Yoon

Do-Hwan Choi

Jun Sik Yoon

Sung-Gu Kim

Seng-Tai Lee

Young-Moung Kim

Gung-Gun Oh

Jae-Hyoung Yeong

Hye-Jung Byun

An apparatus for driving a touchpad of a portable terminal including a second control unit controlling the touchpad in an active mode is provided. The apparatus includes a sensor unit for generating interrupt signals when pressure on the touchpad is sensed, a first control unit for outputting activating signals to activate the second control unit when the interrupt signals are input and a switching unit for transmitting the interrupt signals generated from the sensor unit to the first control unit when the second control unit is in an inactive mode. Accordingly, even though the multimedia processor embedded in the portable terminal is in an inactive mode, the multimedia processor is activated when a user presses the touchpad, thereby making it possible to process signals input by touching the touchpad, particularly, to keep the user interface. Furthermore, the multimedia processor embedded in the portable terminal can reduce the consumption of battery power required to maintain the user interface, as compared with multimedia processors maintaining operating in a conventional polling method.

Apparatus for driving a touch pad and a portable terminal having the same

An apparatus and method for controlling an operation of a portable terminal having a multimedia function are provided. The apparatus includes a multimedia processor for performing the multimedia function when a controller is in a sleep mode wherein the controller is converted to an active mode when a specified key signal is input into the controller in the sleep mode and outputs an inactive signal to inactivate the multimedia processor. According to the present invention, the portable terminal having the controller controlling the mobile communication function and the multimedia processor controlling the multimedia function, can independently perform the mobile communication function and the multimedia function according to the specified key input. Furthermore, according to the present invention, the controller which controls the mobile communication function need not control the multimedia processor which controls the multimedia function. Hence, it is possible to reduce power consumption and software errors occurring when the controller controls the multimedia processor.

Apparatus and method for controlling operation of portable terminal having multimedia function

A key control apparatus for a portable terminal including a first housing with first and second display units and a second housing with first and second key input units is provided. The key control apparatus includes a first key input unit, a second key input unit and a control unit. The first key input unit includes a plurality of touch-sensitive touch keys for implementing given functions, one or more mechanical keys, and a plurality of sensors for sensing the touching of the touch keys and implementing a scroll function. The second key input unit includes a plurality of mechanical keys for implementing given functions or functions corresponding to the keys arranged on the first key input unit. The control unit controls the apparatus so that when a touch key in the first key input unit is touched, a function given to the touch key is implemented.

Key control apparatus of a portable terminal

Disclosed is a method for switching broadcasting channels in a digital broadcasting reception apparatus employing a time division multiplexing scheme. The method includes receiving and demodulating digital broadcasting data according to at least one broadcasting channel serviced in a frequency band used by the broadcasting station when the broadcasting channel of a predetermined broadcasting station is selected, outputting the digital broadcasting data of the selected broadcasting channel among the demodulated digital broadcasting data according to the broadcasting channels, storing digital broadcasting data according to the broadcasting channels except the selected broadcasting channel, and when there is a request for switching one of the broadcasting channels serviced by the broadcasting station, retrieving and outputting the digital broadcasting data of the requested broadcasting channel among the stored data. Since it is possible to quickly switch broadcasting channels in the apparatus during output of the digital broadcasting, the convenience for users is improved.

Digital broadcasting reception apparatus for quick channel switching and method thereof

Disclosed is a mobile terminal and in particular a data storing and reading method of a mobile terminal which makes it possible to perform mutual data exchange between a mobile terminal and a personal computer (PC) by using a universal serial bus interface (USB). For this purpose, there is provided a method and apparatus for storing and reading data in a mobile terminal connected with a PC through a USB interface, wherein the method comprises steps of: detecting whether the mobile terminal is powered on and connected with the PC; recognizing the mobile terminal as a portable disc drive if it is detected that the mobile terminal is connected with the PC; at a write mode for storing data after the mobile terminal is recognized as a portable disc drive, storing data in one of a phone memory installed in the mobile terminal and an auxiliary memory according to a preset storing mode; and at a read mode for reading out and transmitting stored data after the mobile terminal is recognized as a portable disc drive, reading out and transmitting corresponding data from the phone memory or the auxiliary memory, that is stored with data desired to be read out.

Apparatus and method for storing and reading out data in a mobile terminal

Provided are an apparatus and method for receiving digital multimedia broadcasting (DMB) signals in a wireless terminal. The apparatus includes a first antenna for receiving a satellite DMB signal and a first terrestrial DMB signal, a second antenna for receiving a second terrestrial DMB signal, a satellite DMB receiver for processing the satellite DMB signal, a terrestrial DMB receiver for processing the first and second terrestrial DMB signals, and a switch for switching the satellite DMB signal and the first terrestrial DMB signal received by the first antenna to one of the satellite DMB receiver and the terrestrial DMB receiver.

Apparatus and method for receiving digital multimedia broadcasting in a wireless terminal

A method for adjusting the volume level of communication voice and key tones in a cellular phone, comprising the steps of inputting a first and a second voice command for commanding the cellular phone to raise the volume level or lower it, determining whether the cellular phone is in an 'on' communication state when the first or second voice command is inputted to the cellular phone, raising or lowering the volume level respectively in response to the first or second voice command if the cellular phone is in an 'on' communication state determining whether the cellular phone is in a key tone adjustment mode if the cellular phone is not in an &#x201c;on&#x201d; communication state when the first or second voice command is inputted to the cellular phone, and raising or lowering the volume level of the key tone respectively in response to the first or second voice command if the cellular phone is in the key tone adjustment mode.

Method for adjusting the volume of communication voice and key tone in a cellular phone

There is provided a link connection method between communication terminals equipped with Bluetooth wireless devices. To automatically connect a link with a communication terminal equipped with a Bluetooth wireless device acting as a slave by Bluetooth wireless communication, a communication terminal equipped with a Bluetooth wireless device acting as a master transmits a link connection request message to the slave upon request of a link connection with the slave. Then, the master determines whether the link is connected and if the link is not connected, transmits the link connection request message as many times as a predetermined number of automatic link connection attempts until the link is connected.

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Gumi-si, South Korea

Seok-Hyo Park