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    • 2. 发明申请
    • FRAME SYNCHRONIZER, FRAME SYNCHRONIZATION METHOD AND DEMODULATOR
    • 框架同步器,框架同步方法和解调器
    • US20100135335A1
    • 2010-06-03
    • US12597527
    • 2008-04-25
    • Hideyuki MatsumotoTetsuhiro FutamiAtsushi MakitaTakashi YokokawaDoan Tien DungYuichi Mizutani
    • Hideyuki MatsumotoTetsuhiro FutamiAtsushi MakitaTakashi YokokawaDoan Tien DungYuichi Mizutani
    • H04J3/06
    • H04L7/08H04H20/74H04H40/90H04L27/2656H04L27/2675
    • The present invention relates to a frame synchronizer, frame synchronization method and demodulator which can more positively establish frame synchronization of an input signal which is likely to have a plurality of frame lengths.A differential correlation detector 151 calculates a differential correlation value with no pilot which is associated with the absence of a pilot signal inserted in the input signal and a differential correlation value with a pilot which is associated with the presence of a pilot signal inserted in the input signal. The frame period confirmation counters 152-1 and 152-3 perform, based on the differential correlation values with no pilot, frame synchronization control appropriate to the input signals whose frame lengths are 21690 and 32490 symbols, respectively. The frame period confirmation counters 152-2 and 152-4 perform, based on the differential correlation values with a pilot, frame synchronization control appropriate to the input signals whose frame lengths are 22194 and 33282 symbols, respectively.The present invention is applicable, for example, to a satellite broadcast receiver.
    • 帧同步器,帧同步方法和解调器技术领域本发明涉及帧同步器,帧同步方法和解调器,其可以更可靠地建立可能具有多个帧长度的输入信号的帧同步。 差分相关检测器151计算与没有插入在输入信号中的导频信号不相关的导频的差分相关值以及与插入在输入端中的导频信号的存在相关联的导频的差分相关值 信号。 帧周期确认计数器152-1,152-3分别基于不具有导频的差分相关值,分别对帧长度分别为21690和32490的输入信号进行适合的帧同步控制。 帧周期确认计数器152-2,152-4分别基于具有导频的差分相关值,分别对帧长度为22194和33282符号的输入信号进行适合的帧同步控制。 本发明可以应用于例如卫星广播接收机。
    • 6. 发明授权
    • Data processing apparatus, data processing method, and program
    • 数据处理装置,数据处理方法和程序
    • US08938002B2
    • 2015-01-20
    • US13380758
    • 2010-06-23
    • Hideyuki MatsumotoYuichi Mizutani
    • Hideyuki MatsumotoYuichi Mizutani
    • G06F12/00H04N7/173H04H40/90H04H60/11H04N7/167H04N21/434H04N21/438H04N21/44
    • H04N7/173H04H40/90H04H60/11H04N7/167H04N21/4347H04N21/4383H04N21/44004
    • A data processing apparatus, a data processing method, and a program that are configured to prevent (or lower) the increase in scale and cost of the apparatus. A read/write control portion executes read/write control in which slots subject to extraction of two or more slots in one frame that is a collection of two or more slots each of which is a unit of error correction coding are written to a ring buffer and the slots subject to extraction in one frame written to the ring buffer are read within the unit time. When slots subject to extraction are changed, an output portion executes output processing in which dummy data outputted from a dummy data output portion are outputted with a timing immediately before a change start frame that is a frame from which the change of slots subject to extraction is started and, slots subject to extraction read from the ring buffer are outputted for frames subsequent to the change start frame. The present disclosure is applicable to reception apparatuses for receiving BS digital broadcasting, for example.
    • 一种数据处理装置,数据处理方法和程序,被配置为防止(或降低)装置的规模和成本的增加。 读/写控制部分执行读/写控制,其中在一帧中作为两个或更多个时隙的集合的两个或更多个时隙中的两个或更多个时隙被提取的时隙,每个时隙都是纠错编码的单位,被写入环形缓冲器 并且在单位时间内读取在写入环形缓冲器的一帧中被提取的时隙。 当进行提取的时隙发生改变时,输出部分执行输出处理,其中从伪数据输出部分输出的虚拟数据以紧邻改变开始帧之前的定时被输出,该改变开始帧是从其提取的时隙的改变是 开始,并且从改变开始帧之后的帧输出从环形缓冲器读取的提取的时隙。 例如,本公开可应用于接收BS数字广播的接收装置。
    • 8. 发明申请
    • DATA PROCESSING APPARATUS, DATA PROCESSING METHOD, AND PROGRAM
    • 数据处理设备,数据处理方法和程序
    • US20120110284A1
    • 2012-05-03
    • US13380758
    • 2010-06-23
    • Hideyuki MatsumotoYuichi Mizutani
    • Hideyuki MatsumotoYuichi Mizutani
    • G06F12/00
    • H04N7/173H04H40/90H04H60/11H04N7/167H04N21/4347H04N21/4383H04N21/44004
    • The present invention relates to a data processing apparatus, a data processing method, and a program that are configured to prevent (or lower) the increase in scale and cost of the apparatus.A read/write control portion 73 executes read/write control in which slots subject to extraction of two or more slots in one frame that is a collection of two or more slots each of which is a unit of error correction coding are written to a ring buffer 71 and the slots subject to extraction in one frame written to the ring buffer 71 are read within the unit time. When slots subject to extraction are changed, an output portion 76 executes output processing in which dummy data outputted from a dummy data output portion 75 are outputted with a timing immediately before a change start frame that is a frame from which the change of slots subject to extraction is started and, slots subject to extraction read from the ring buffer 71 are outputted for frames subsequent to the change start frame. The present invention is applicable to reception apparatuses for receiving BS digital broadcasting, for example.
    • 本发明涉及一种数据处理装置,数据处理方法和程序,其被配置为防止(或降低)装置的规模和成本的增加。 读/写控制部分73执行读/写控制,其中在作为两个或更多个时隙的两个或多个时隙的集合中的两个或更多个时隙的一个帧中的两个或更多个时隙作为纠错编码的单位被提取的时隙写入环 在单位时间内读取缓冲器71,并且在写入环形缓冲器71的一帧中进行提取的时隙。 当进行提取的时隙发生改变时,输出部分76执行输出处理,其中从伪数据输出部分75输出的虚拟数据以紧接改变开始帧之前的定时被输出 提取开始,并且从改变开始帧之后的帧输出从环形缓冲器71读取的提取的时隙。 本发明例如适用于接收BS数字广播的接收装置。