Apparatus and method for receiving digital multimedia broadcasting in a wireless terminal
원문보기
IPC분류정보
국가/구분
United States(US) Patent
등록
국제특허분류(IPC7판)
H03K-009/00
H04L-027/06
H04L-027/14
H04L-027/22
출원번호
US-0115786
(2005-04-27)
등록번호
US-7440516
(2008-10-21)
우선권정보
KR-10-2004-0033424(2004-05-12)
발명자
/ 주소
Kim,Sung Gu
Kim,Hark Sang
Park,Seok Hyo
출원인 / 주소
Samsung Electronics Co., Ltd
대리인 / 주소
The Farrell Law Firm, PC
인용정보
피인용 횟수 :
133인용 특허 :
3
초록▼
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 s
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.
대표청구항▼
What is claimed is: 1. An apparatus for receiving digital multimedia broadcasting (DMB) signals in a wireless terminal, comprising: 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 DM
What is claimed is: 1. An apparatus for receiving digital multimedia broadcasting (DMB) signals in a wireless terminal, comprising: 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. 2. The apparatus according to claim 1, wherein the satellite DMB receiver comprises: a first tuner for receiving the satellite DMB signal applied through the switch; a first DMB processor for demodulating the satellite DMB signal received by the first tuner, separating the demodulated satellite DMB signal into audio and video signals, and decoding each channel; and a first coder-decoder (CODEC) for decoding the audio and video signals separated from the satellite DMB signal by the first DMB processor, and outputting the decoded audio and video signals. 3. The apparatus according to claim 2, wherein the first DMB processor comprises: a first demodulator for demodulating the satellite DMB signal applied from the first tuner, and separating the demodulated satellite DMB signal into the audio and video signals; a first channel decoder for decoding each channel of the satellite DMB signal demodulated by the first demodulator; and a pilot channel decoder for synchronizing transmitted and received satellite DMB signals. 4. The apparatus according to claim 1, wherein the terrestrial DMB receiver comprises: a second tuner for receiving the first terrestrial DMB signal applied through the switch, and the second terrestrial DMB signal applied through the second antenna; a second DMB processor for demodulating the first and second terrestrial DMB signals received by the second tuner, separating the demodulated first and second terrestrial DMB signals into audio and video signals, and decoding each channel; and a second coder-decoder (CODEC) for decoding the audio and video signals separated from the first and second terrestrial DMB signals by the second DMB processor, and outputting the decoded audio and video signals. 5. The apparatus according to claim 4, wherein the second DMB processor comprises: a second demodulator for demodulating the first and second terrestrial DMB signals received by the second tuner, and separating the demodulated first and second terrestrial DMB signals into the audio and video signals; and a second channel decoder for decoding each channel of the first and second terrestrial DMB signals demodulated by the second demodulator. 6. The apparatus according to claim 1, wherein the switch switches a communication signal received through the first antenna to a radio frequency (RF) unit for performing a wireless communication function, when the wireless terminal performs a communication mode. 7. The apparatus according to claim 1, wherein the wireless terminal comprises a mobile phone. 8. The apparatus according to claim 1, wherein a frequency band of the satellite DMB mode is between 2.6 to 2.65 GHz, a frequency band of the first terrestrial DMB mode is between 1452 to 1492 MHz, and a frequency band of the second terrestrial DMB mode is between 174 to 240 MHz. 9. A method for receiving digital multimedia broadcasting (DMB) in a wireless terminal, comprising: displaying available types of DMB signals, when DMB viewing is selected in a television (TV) mode; when satellite DMB is user selected from the displayed types of DMB signals, receiving and outputting a satellite DMB signal; and when terrestrial DMB is user selected from the displayed types of DMB signals, receiving and outputting one of a first terrestrial DMB signal and a second terrestrial DMB signal, wherein the satellite DMB signal and the first terrestrial DMB signal are received through a first antenna of the wireless terminal and the second terrestrial DMB signal is received through a second antenna of the wireless terminal. 10. The method according to claim 9, wherein the steps of receiving further comprise: receiving the satellite DMB signal; demodulating the received satellite DMB signal; separating the demodulated satellite DMB signal into audio and video signals; performing channel-by-channel decoding; and decoding the audio and video signals separated from the satellite DMB signal and outputting the decoded audio and video signals. 11. The method according to claim 10, wherein the step of demodulating further comprises: demodulating the satellite DMB signal, and separating the demodulated satellite DMB signal into the audio and video signals; decoding the demodulated satellite DMB signal; and performing synchronization between transmitted and received satellite DMB signals. 12. The method according to claim 9, wherein the step of receiving the first and second terrestrial signals further comprises: receiving the first terrestrial DMB signal from a switch, and the second terrestrial DMB signal through a second antenna; demodulating the first and second terrestrial DMB signals; separating the demodulated first and second terrestrial DMB signals into audio and video signals; performing channel-by-channel decoding; and decoding the audio and video signals separated from the first and second terrestrial DMB signals and outputting the decoded audio and video signals. 13. The method according to claim 12, wherein the step of demodulating the first and second terrestrial DMB signals further comprises: demodulating the received first and second terrestrial DMB signals; separating the demodulated first and second terrestrial DMB signals into the audio and video signals; and decoding the demodulated first and second terrestrial DMB signals channel by channel. 14. The method according to claim 9, further comprising: switching a communication signal received through the first antenna to a radio frequency (RF) unit for performing a wireless communication function, when the wireless terminal performs a communication mode. 15. The method of claim 9, wherein the wireless terminal comprises a mobile phone. 16. The method according to claim 9, wherein a frequency band of the satellite DMB signal is between 2.6 to 2.65 GHz, and a frequency band of the terrestrial DMB signal is between one of 1452 to 1492 MHz and 174 to 240 MHz.
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