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1. 发明申请

US20100159863A1 APPARATUS AND METHOD FOR PERFORMING ATTENUATION FUNCTION IN CABLE BROADCAST RECEIVER 有权
标题翻译：电缆广播接收机执行衰减功能的装置及方法
公开(公告)号：US20100159863A1
公开(公告)日：2010-06-24
申请号：US12645808
申请日：2009-12-23
申请人： Sang-Yeon MOON , Geun-Sik YUN , Dong-Uk SEO , Sung-Soo LEE , Hyun-Jun KIM
发明人： Sang-Yeon MOON , Geun-Sik YUN , Dong-Uk SEO , Sung-Soo LEE , Hyun-Jun KIM
IPC分类号： H04B7/00
CPC分类号： H03G3/3052
摘要： An apparatus and a method for performing an attenuation function on a signal using an attenuator in a cable broadcast receiver having a Low Noise Amplifier (LNA) that does not perform an attenuation function on a signal are provided. In the method, an input Radio Frequency (RF) signal is tuned, The RF signal is converted into an Intermediate Frequency (IF) signal. An intensity of the converted IF signal is compared to a threshold, and an RF Automatic Gain Control (AGC) value is generated based on a result of the comparison. When the generated RF AGC value is smaller than an RF AGC threshold, the attenuator is turned on to attenuate the input RF signal by a predefined amount. Therefore, a high SNR, such as in an analog-digital composite signal, may be obtained without using an LNA that performs an attenuation function on a signal.
摘要翻译：提供一种用于在具有不对信号执行衰减功能的低噪声放大器（LNA）的有线广播接收机中使用衰减器对信号执行衰减功能的装置和方法。在该方法中，调谐输入射频（RF）信号，将RF信号转换成中频（IF）信号。将转换的IF信号的强度与阈值进行比较，并且基于比较的结果生成RF自动增益控制（AGC）值。当所生成的RF AGC值小于RF AGC阈值时，衰减器导通，以将输入RF信号衰减预定量。因此，可以在不使用对信号执行衰减功能的LNA的情况下获得诸如模拟数字复合信号中的高SNR。

2. 发明授权

US07421262B2 Tuning method and apparatus for reducing interference between adjacent channels 失效
标题翻译：用于减少相邻信道之间的干扰的调谐方法和装置
公开(公告)号：US07421262B2
公开(公告)日：2008-09-02
申请号：US11282601
申请日：2005-11-21
申请人： Dong-Uk Seo
发明人： Dong-Uk Seo
IPC分类号： H04B1/16
CPC分类号： H03J1/0008 , H03J5/00 , H04B1/1027 , H04N5/4446 , H04N5/50
摘要： A tuning method comprises: detecting a fundamental intermediate frequency IF0 of a channel to be received; determining whether the fundamental intermediate frequency IF0 is affected by an adjacent channel; when the fundamental intermediate frequency IF0 is affected by the adjacent channel, detecting a tuning intermediate frequency that is not affected by the adjacent channel while changing the fundamental intermediate frequency IF0; when there is no variable intermediate frequency that is not affected by the adjacent channel, detecting a variable intermediate frequency that is least affected by the adjacent channel as the tuning intermediate frequency; and tuning the channel using the tuning intermediate frequency. A tuning apparatus comprises: a tuner for detecting a fundamental intermediate frequency IF0 of a channel to be received, a flash memory for storing a tuning algorithm, and a demodulator for detecting a tuning intermediate frequency while changing the fundamental intermediate frequency IF0, and for tuning the channel using the tuning intermediate frequency based on a prescribed tuning algorithm, the tuning intermediate frequency being a variable intermediate frequency IFn that is not affected by an adjacent channel.
摘要翻译：调谐方法包括：检测要接收的信道的基本中频IF <0> 0 是否受相邻信道的影响; 当基本中频IF <0> 0受相邻信道影响时，检测在不改变基本中频IF <0> 0的情况下不受相邻信道影响的调谐中频; 当不存在不受相邻信道影响的可变中频时，检测受相邻信道影响最小的可变中频作为调谐中频; 并使用调谐中频对信道进行调谐。调谐装置包括：用于检测要接收的信道的基本中频IF SUB的调谐器，用于存储调谐算法的闪速存储器，以及用于在改变调谐中心时检测调谐中频的解调器基本中频IF 0 <0>，并且用于基于规定的调谐算法使用调谐中频调谐信道，调谐中频是可变中频IF N n 不受相邻通道影响。

3. 发明申请

US20060111063A1 Tuning method and apparatus for reducing interference between adjacent channels 失效
标题翻译：用于减少相邻信道之间的干扰的调谐方法和装置
公开(公告)号：US20060111063A1
公开(公告)日：2006-05-25
申请号：US11282601
申请日：2005-11-21
申请人： Dong-Uk Seo
发明人： Dong-Uk Seo
IPC分类号： H04B1/18 , H04B1/06
CPC分类号： H03J1/0008 , H03J5/00 , H04B1/1027 , H04N5/4446 , H04N5/50
摘要： A tuning method comprises: detecting a fundamental intermediate frequency IF0 of a channel to be received; determining whether the fundamental intermediate frequency IF0 is affected by an adjacent channel; when the fundamental intermediate frequency IF0 is affected by the adjacent channel, detecting a tuning intermediate frequency that is not affected by the adjacent channel while changing the fundamental intermediate frequency IF0; when there is no variable intermediate frequency that is not affected by the adjacent channel, detecting a variable intermediate frequency that is least affected by the adjacent channel as the tuning intermediate frequency; and tuning the channel using the tuning intermediate frequency. A tuning apparatus comprises: a tuner for detecting a fundamental intermediate frequency IF0 of a channel to be received, a flash memory for storing a tuning algorithm, and a demodulator for detecting a tuning intermediate frequency while changing the fundamental intermediate frequency IF0, and for tuning the channel using the tuning intermediate frequency based on a prescribed tuning algorithm, the tuning intermediate frequency being a variable intermediate frequency IFn that is not affected by an adjacent channel.
摘要翻译：调谐方法包括：检测要接收的信道的基本中频IF <0> 0 是否受相邻信道的影响; 当基本中频IF <0> 0受相邻信道影响时，检测在不改变基本中频IF <0> 0的情况下不受相邻信道影响的调谐中频; 当不存在不受相邻信道影响的可变中频时，检测受相邻信道影响最小的可变中频作为调谐中频; 并使用调谐中频对信道进行调谐。调谐装置包括：用于检测要接收的信道的基本中频IF SUB的调谐器，用于存储调谐算法的闪速存储器，以及用于在改变调谐中心时检测调谐中频的解调器基本中频IF 0 <0>，并且用于基于规定的调谐算法使用调谐中频调谐信道，调谐中频是可变中频IF N n 不受相邻通道影响。

4. 发明授权

US08238857B2 Apparatus and method for performing attenuation function in cable broadcast receiver 有权
标题翻译：在有线广播接收机中执行衰减功能的装置和方法
公开(公告)号：US08238857B2
公开(公告)日：2012-08-07
申请号：US12645808
申请日：2009-12-23
申请人： Sang-Yeon Moon , Geun-Sik Yun , Dong-Uk Seo , Sung-Soo Lee , Hyun-Jun Kim
发明人： Sang-Yeon Moon , Geun-Sik Yun , Dong-Uk Seo , Sung-Soo Lee , Hyun-Jun Kim
IPC分类号： H04B17/02
CPC分类号： H03G3/3052
摘要： An apparatus and a method for performing an attenuation function on a signal using an attenuator in a cable broadcast receiver having a Low Noise Amplifier (LNA) that does not perform an attenuation function on a signal are provided. In the method, an input Radio Frequency (RF) signal is tuned, The RF signal is converted into an Intermediate Frequency (IF) signal. An intensity of the converted IF signal is compared to a threshold, and an RF Automatic Gain Control (AGC) value is generated based on a result of the comparison. When the generated RF AGC value is smaller than an RF AGC threshold, the attenuator is turned on to attenuate the input RF signal by a predefined amount. Therefore, a high SNR, such as in an analog-digital composite signal, may be obtained without using an LNA that performs an attenuation function on a signal.
摘要翻译：提供一种用于在具有不对信号执行衰减功能的低噪声放大器（LNA）的有线广播接收机中使用衰减器对信号执行衰减功能的装置和方法。在该方法中，调谐输入射频（RF）信号，将RF信号转换成中频（IF）信号。将转换的IF信号的强度与阈值进行比较，并且基于比较的结果生成RF自动增益控制（AGC）值。当所生成的RF AGC值小于RF AGC阈值时，衰减器导通，以将输入RF信号衰减预定量。因此，可以在不使用对信号执行衰减功能的LNA的情况下获得诸如模拟数字复合信号中的高SNR。

5. 发明申请

US20100097528A1 APPARATUS AND METHOD FOR RECEIVING TWO MODES OF BROADCASTS USING ONE TUNER IN SET-TOP-BOX 有权
标题翻译：使用一台调谐器在两台模式下接收两种广播模式的装置和方法
公开(公告)号：US20100097528A1
公开(公告)日：2010-04-22
申请号：US12581481
申请日：2009-10-19
申请人： Dong-Uk SEO
发明人： Dong-Uk SEO
IPC分类号： H04N5/455
CPC分类号： H04N7/106 , H04H40/18 , H04L12/2801 , H04L12/2898 , H04N21/4263 , H04N21/4383 , Y02D70/168
摘要： An apparatus and a method for receiving two broadcast modes using one tuner in a Set-Top-Box (STB) are provided. The integrated tuner unit receives a broadcast signal of at least one of a DSG scheme and an OOB scheme to tune a desired broadcast band, and converts the broadcast signal into at least one Intermediate Frequency (IF) signal. The switching unit switches the at least one IF signal to at least one of the DSG demodulator and the OOB demodulator. The DSG demodulator demodulates the at least one IF signal according to the DSG scheme, when the broadcast signal of the DSG scheme is received. The OOB demodulator demodulates the at least one IF signal according to the OOB scheme, when the broadcast signal of the OOB scheme is received.
摘要翻译：提供了一种在机顶盒（STB）中使用一个调谐器接收两种广播模式的装置和方法。集成调谐器单元接收DSG方案和OOB方案中的至少一个的广播信号，以调谐期望的广播频带，并将广播信号转换成至少一个中频（IF）信号。切换单元将至少一个IF信号切换到DSG解调器和OOB解调器中的至少一个。当接收到DSG方案的广播信号时，DSG解调器根据DSG方案解调至少一个IF信号。当接收到OOB方案的广播信号时，OOB解调器根据OOB方案解调至少一个IF信号。

6. 发明申请

US20060225109A1 Power-saving channel scanning for multi-channel broadcasting 审中-公开
标题翻译：省电频道扫描多频道广播
公开(公告)号：US20060225109A1
公开(公告)日：2006-10-05
申请号：US11330330
申请日：2006-01-12
申请人： Dong-Uk Seo
发明人： Dong-Uk Seo
IPC分类号： H04N7/173 , H04N5/44
CPC分类号： H04N21/4383 , H04N5/4401 , H04N5/50 , H04N5/63 , H04N21/44209
摘要： A power-saving channel scanning system and a method thereof for multi-channel broadcasting stops the scanning operation of a digital tuner installed in a broadcast receiving device (Set-Top Box (STB)) and switches to a power-saving mode when a cable is cut off or no signal is received in a multi-channel broadcasting system. The power-saving channel scanning system includes a broadcast receiving terminal measuring broadcasting channel powers in order and switching from a normal mode to a power-saving mode when the powers of all of the measured channels are outside the range of a predetermined normal channel power.
摘要翻译：用于多声道广播的省电频道扫描系统及其方法停止安装在广播接收装置（机顶盒（STB））中的数字调谐器的扫描操作，并且当电缆在多频道广播系统中被切断或没有接收到信号。省电频道扫描系统包括广播接收终端，当所有测量信道的功率超出预定的正常信道功率的范围时，测量广播信道功率并从正常模式切换到省电模式。

7. 发明申请

US20060090190A1 Multi-channel broadcasting receiver and method for realizing power-saving mode therefor 审中-公开
标题翻译：多频道广播接收机及其实现省电模式的方法
公开(公告)号：US20060090190A1
公开(公告)日：2006-04-27
申请号：US11258117
申请日：2005-10-26
申请人： Dong-Uk Seo
发明人： Dong-Uk Seo
IPC分类号： H04N7/16
CPC分类号： H04N21/426
摘要： A multi-channel broadcasting receiver (e.g., a set-top box or STB) and a method for realizing a power-saving mode thereof are provided. The STB includes: an analog broadcasting processor for receiving and outputting an analog broadcast signal; a digital broadcasting processor for receiving and outputting a digital broadcast signal; a broadcasting selector for selecting and outputting one of the analog and digital broadcast signals; a power supply for controlling power supplied to the digital broadcasting processor to realize a power-saving mode; and a controller for controlling the operations of the broadcasting selector and the power supply in response to an external operational signal. The method for realizing the power-saving mode comprises: receiving an external operation signal for selecting a loop-through function; selecting and outputting the signal from the analog broadcasting processor; and blocking power from being supplied to the digital broadcasting processor. Accordingly, power consumption and waste in processing the digital broadcast signal when the analog broadcast signal is being outputted is prevented, and heat generated in the STB is reduced, thereby enhancing the durability of the STB.
摘要翻译：提供了一种多频道广播接收机（例如，机顶盒或STB）以及用于实现其省电模式的方法。 STB包括：模拟广播处理器，用于接收和输出模拟广播信号; 数字广播处理器，用于接收和输出数字广播信号; 广播选择器，用于选择和输出模拟和数字广播信号之一; 用于控制提供给数字广播处理器的电力以实现节电模式的电源; 以及控制器，用于响应于外部操作信号控制广播选择器和电源的操作。实现省电模式的方法包括：接收用于选择循环功能的外部操作信号; 从模拟广播处理器选择和输出信号; 并阻止电力被提供给数字广播处理器。因此，防止了在输出模拟广播信号时处理数字广播信号时的功耗和浪费，并且降低了STB中产生的热量，从而提高了STB的耐久性。

8. 发明授权

US09215404B2 Apparatus and method for receiving two modes of broadcasts using one tuner in set-top-box 有权
标题翻译：在机顶盒中使用一个调谐器接收两种广播模式的装置和方法
公开(公告)号：US09215404B2
公开(公告)日：2015-12-15
申请号：US12581481
申请日：2009-10-19
申请人： Dong-Uk Seo
发明人： Dong-Uk Seo
IPC分类号： H04N7/173 , H04N7/10 , H04L12/28 , H04N21/426 , H04N21/438 , H04H40/18
CPC分类号： H04N7/106 , H04H40/18 , H04L12/2801 , H04L12/2898 , H04N21/4263 , H04N21/4383 , Y02D70/168
摘要： An apparatus and a method for receiving two broadcast modes using one tuner in a Set-Top-Box (STB) are provided. The integrated tuner unit receives a broadcast signal of at least one of a DSG scheme and an OOB scheme to tune a desired broadcast band, and converts the broadcast signal into at least one Intermediate Frequency (IF) signal. The switching unit switches the at least one IF signal to at least one of the DSG demodulator and the OOB demodulator. The DSG demodulator demodulates the at least one IF signal according to the DSG scheme, when the broadcast signal of the DSG scheme is received. The OOB demodulator demodulates the at least one IF signal according to the OOB scheme, when the broadcast signal of the OOB scheme is received.
摘要翻译：提供了一种在机顶盒（STB）中使用一个调谐器接收两种广播模式的装置和方法。集成调谐器单元接收DSG方案和OOB方案中的至少一个的广播信号，以调谐期望的广播频带，并将广播信号转换成至少一个中频（IF）信号。切换单元将至少一个IF信号切换到DSG解调器和OOB解调器中的至少一个。当接收到DSG方案的广播信号时，DSG解调器根据DSG方案解调至少一个IF信号。当接收到OOB方案的广播信号时，OOB解调器根据OOB方案解调至少一个IF信号。

9. 发明申请

US20060277570A1 Digital multiplex broadcasting apparatus and method 审中-公开
标题翻译：数字多路复用广播设备及方法
公开(公告)号：US20060277570A1
公开(公告)日：2006-12-07
申请号：US11397563
申请日：2006-04-05
申请人： Dong-Uk Seo
发明人： Dong-Uk Seo
IPC分类号： H04N5/445
CPC分类号： H04H20/38 , H04H20/28 , H04H20/63 , H04H60/39 , H04N21/23424 , H04N21/2365 , H04N21/4316
摘要： A multiplex broadcasting apparatus and method in a digital broadcasting system. The multiplex broadcasting apparatus and method are designed to provide a plurality of programs, as a digital multiplex broadcast, requested by a user over a single channel, so that the user can receive a plurality of desired programs by using a settop box having a single tuner while being provided with various types of multiplex broadcasts such as Picture In Picture (PIP), Perception Video Recorder (PVR) and multiroom functions by using the received programs.
摘要翻译：数字广播系统中的多路广播装置和方法。多路复用广播装置和方法被设计为提供由用户通过单个信道请求的多个节目作为数字多路复用广播，使得用户可以通过使用具有单个调谐器的机顶盒来接收多个期望的节目同时通过使用所接收的节目来提供诸如画中画（PIP），感知视频记录器（PVR）和多房间功能的各种类型的复用广播。

10. 发明申请

US20050168641A1 Broadcast transceiver and method of operating tuner thereof 审中-公开
标题翻译：广播收发机及其调谐器的操作方法
公开(公告)号：US20050168641A1
公开(公告)日：2005-08-04
申请号：US11004826
申请日：2004-12-07
申请人： Dong-Uk Seo
发明人： Dong-Uk Seo
IPC分类号： H04B1/06 , H04B1/16 , H04N5/44 , H04N5/45 , H04N5/46 , H04N5/50 , H04N5/91
CPC分类号： H04N5/45 , H04N5/4401 , H04N5/46 , H04N21/4147 , H04N21/42638 , H04N21/4316
摘要： A method of operating a tuner of a broadcast transceiver having a first tuner and a second tuner adapted to tune both analog and digital broadcasts includes: arranging a broadcast transceiver to include first and second tuners each adapted to tune both analog and digital broadcasts; determining which of the first and second tuners is tuned to a currently playing broadcast and setting that tuner as a primary tuner in response to a command for performing one of PIP and PVR functions being inputted by a user; setting the other of the first and second tuners as a secondary tuner and waiting for channel setting information from the user; and determining a broadcast scheme of the corresponding channel and designating an operational mode of the secondary tuner as the broadcast scheme of the corresponding channel in response to the channel setting information being inputted by the user.
摘要翻译：一种操作具有第一调谐器和适于调谐模拟和数字广播的第二调谐器的广播收发器的调谐器的方法包括：布置广播收发器以包括第一和第二调谐器，每个调谐器适于调谐模拟和数字广播; 响应于用于执行由用户输入的PIP和PVR功能之一的命令，确定第一和第二调谐器中的哪一个被调谐到当前播放的广播并且将该调谐器设置为主调谐器; 将第一和第二调谐器中的另一个设置为辅助调谐器并等待来自用户的频道设置信息; 以及响应于由用户输入的频道设置信息，确定相应频道的广播方案并指定辅助调谐器的操作模式作为相应频道的广播方案。

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