专利快速检索-快速检索全球专利，免费商用专利数据库-IPRDB

1. 发明公开

EP1557995A2 Data converter and data conversion method, and transmitter circuit, communications device and electronic device using the same 审中-公开
标题翻译：数据转换器和数据转换处理
公开(公告)号：EP1557995A2
公开(公告)日：2005-07-27
申请号：EP05000878.8
申请日：2005-01-18
申请人： MATSUSHITA ELECTRIC INDUSTRIAL CO., LTD.
发明人： Matsuura, Toru , Adachi, Hisashi
IPC分类号： H04L27/34
CPC分类号： H03F1/3241 , H03F2200/331 , H04L27/361
摘要： The present invention is directed to a data converter for converting an input signal to a signal to be inputted to an amplifier. The data converter includes: an amplitude detection section for detecting an amplitude level of the input signal; a region determination section for determining whether or not an input power to the amplifier is in a non-linear region of the amplifier based on the amplitude level of the input signal detected by the amplitude detection section; and a signal processing section for converting the input signal to a signal having a lower resolution than that of the input signal if the region determination section determines that the input power to the amplifier is in the non-linear region of the amplifier.

2. 发明公开

EP1372282A2 Transmitting circuit device and wireless communications device 审中-公开
标题翻译：发送和接收Nachrichtenübertragungsvorrichtung
公开(公告)号：EP1372282A2
公开(公告)日：2003-12-17
申请号：EP03013265.8
申请日：2003-06-12
申请人： MATSUSHITA ELECTRIC INDUSTRIAL CO., LTD.
发明人： Matsuura, Toru , Adachi, Hisashi
IPC分类号： H04B14/06
CPC分类号： H04B14/06
摘要： A transmitting circuit device (201) has a first signal source (202) which outputs a first signal that is a binary or multilevel discrete analog signal or a discrete analog signal with a binary or multilevel envelope and that has signal components and quantization noise components; a second signal source (203) which outputs a second signal composed of the quantization noise components; a first amplifier (204) which amplifies the first signal; and a combiner (206) which cancels out the quantization noise components by combining an output of the first amplifier and the second signal.
摘要翻译：发射电路装置（201）具有第一信号源（202），其输出二进制或多电平分立模拟信号的第一信号或具有二进制或多电平包络的分立模拟信号，并具有信号分量和量化噪声分量; 输出由所述量化噪声分量组成的第二信号的第二信号源（203）放大第一信号的第一放大器（204）; 以及通过组合第一放大器和第二信号的输出来消除量化噪声分量的组合器（206）。

3. 发明公开

EP0911985A3 Dual band Transmitter with switchable matching circuit 有权
标题翻译：双波段发射机具有可切换Anpassunsschaltung
公开(公告)号：EP0911985A3
公开(公告)日：2002-10-02
申请号：EP98119696.7
申请日：1998-10-19
申请人： MATSUSHITA ELECTRIC INDUSTRIAL CO., LTD.
发明人： Matsuura, Toru , Ishida, Kaoru , Kosugi, Hiroaki , Morinaga, Youichi Foyuhiro-Saidoterasu
IPC分类号： H04B1/04 , H04B1/40
CPC分类号： H04B1/0458 , H03F1/56 , H03F3/193 , H03F3/245 , H03F2200/111 , H03F2200/387 , H04B1/006
摘要： Disclosed is a transmitter for switching and transmitting signals of plural frequency bands. For example, the signals of two frequency bands are switched and transmitted. For the transmission in a first frequency band, both of transistors 104, 105 are turned off, whereby a power amplifying transistor 102 is matched by an input wide band matching circuit 101 and an output main matching circuit 103, so that the high efficiency linear amplification is accomplished. For the transmission in a second frequency band, the transistor 104 is turned on while the transistor 105 is turned off, whereby the power amplifying transistor 102 is matched by a capacitance 108 as well as the input wide band matching circuit 101 and the output main matching circuit 103, so that the high efficiency linear amplification is accomplished. An external switch for switching the matching circuits is thus unnecessary.

4. 发明公开

EP0911985A2 Dual band Transmitter with switchable matching circuit 有权
标题翻译： Dualbandsender mit schaltbaren Anpassungsschaltung
公开(公告)号：EP0911985A2
公开(公告)日：1999-04-28
申请号：EP98119696.7
申请日：1998-10-19
申请人： MATSUSHITA ELECTRIC INDUSTRIAL CO., LTD.
发明人： Matsuura, Toru , Ishida, Kaoru , Kosugi, Hiroaki , Morinaga, Youichi Foyuhiro-Saidoterasu
IPC分类号： H04B1/04
CPC分类号： H04B1/0458 , H03F1/56 , H03F3/193 , H03F3/245 , H03F2200/111 , H03F2200/387 , H04B1/006
摘要： Disclosed is a transmitter for switching and transmitting signals of plural frequency bands. For example, the signals of two frequency bands are switched and transmitted. For the transmission in a first frequency band, both of transistors 104, 105 are turned off, whereby a power amplifying transistor 102 is matched by an input wide band matching circuit 101 and an output main matching circuit 103, so that the high efficiency linear amplification is accomplished. For the transmission in a second frequency band, the transistor 104 is turned on while the transistor 105 is turned off, whereby the power amplifying transistor 102 is matched by a capacitance 108 as well as the input wide band matching circuit 101 and the output main matching circuit 103, so that the high efficiency linear amplification is accomplished. An external switch for switching the matching circuits is thus unnecessary.
摘要翻译：公开了用于切换和发送多个频带的信号的发射机。例如，切换并发送两个频带的信号。对于在第一频带中的传输，晶体管104,105都被截止，由此功率放大晶体管102被输入宽带匹配电路101和输出主匹配电路103匹配，使得高效线性放大完成了为了在第二频带中的传输，晶体管104导通，而晶体管105截止，由此功率放大晶体管102与电容108以及输入宽带匹配电路101和输出主匹配电路103，从而实现高效线性放大。因此，不需要用于切换匹配电路的外部开关。

5. 发明授权

EP0911985B1 Dual band transmitter with switchable matching circuit 有权
标题翻译：双带传送器与切换匹配电路
公开(公告)号：EP0911985B1
公开(公告)日：2004-01-21
申请号：EP98119696.7
申请日：1998-10-19
申请人： MATSUSHITA ELECTRIC INDUSTRIAL CO., LTD.
发明人： Matsuura, Toru , Ishida, Kaoru , Kosugi, Hiroaki , Morinaga, Youichi Foyuhiro-Saidoterasu
IPC分类号： H04B1/04 , H04B1/40
CPC分类号： H04B1/0458 , H03F1/56 , H03F3/193 , H03F3/245 , H03F2200/111 , H03F2200/387 , H04B1/006

6. 发明公开

EP1133052A3 Delay circuit and feedforward amplifier 有权
标题翻译：延迟电路及前馈放大器
公开(公告)号：EP1133052A3
公开(公告)日：2003-08-20
申请号：EP01105597.7
申请日：2001-03-06
申请人： MATSUSHITA ELECTRIC INDUSTRIAL CO., LTD.
发明人： Matsuyoshi, Toshimitsu , Matsuura, Toru , Ishida, Kaoru , Fujiwara, Seiji
IPC分类号： H03H7/30 , H01P9/00
CPC分类号： H03H7/30
摘要： Adelay circuit in which amplitude characteristic and delay time characteristic of the output signals do not have any ripple relative to the length of the transmission line is provided. The delay circuit includes a circuit that makes a part of signals distributed into two parts by the power divider (103) to be identical in amplitude and inverse in phase relative to the component of signals outputted from the terminal-a directly to the terminal-c of the circulator (104). By composing with the power combiner (107), both signals are offset each other at the output terminal. As a result, only the signals that are inputted from the input terminal (101) and transmitted through the circulator (104) and the open-ended transmission line (105) are outputted to the output terminal (102).

7. 发明公开

EP1583245A3 Data converter device and data conversion method, and transmitter circuit, communications device and electronic device using the same 审中-公开
标题翻译：装置和方法用于数据传输电路的转换，并且因此通信装置配备电子电路
公开(公告)号：EP1583245A3
公开(公告)日：2006-09-13
申请号：EP05005116.8
申请日：2005-03-09
申请人： MATSUSHITA ELECTRIC INDUSTRIAL CO., LTD.
发明人： Matsuura, Toru , Adachi, Hisashi
IPC分类号： H03M3/00 , H04L27/36
CPC分类号： H03M3/368 , H03M3/458
摘要： The present invention aims to provide a transmitter circuit that is capable of suppressing quantization noise and operating with a high efficiency, a data converter section (13) and a data conversion method for use therein, and a communications device using the same. The data converter section (13) of the present invention performs a predetermined data conversion operation on an input signal. The data converter section (13) includes: a signal processing section (133) for discretizing the input signal to produce a signal having a lower resolution magnitude-wise than that of the input signal; a subtractor section (134) for subtracting the input signal from the signal having a lower resolution to extract quantization noise; a filter (135) for extracting quantization noise near an intended wave frequency; and a subtractor section (136) for removing the quantization noise near the intended wave frequency from the signal having a lower resolution.
摘要翻译：本发明的目的就是提供一种发射机电路确实能够抑制量化噪声和，数据转换部（13）和其中使用一个数据转换方法，和一个通信设备使用相同的高效率工作。本发明的数据转换器部（13）进行预定的数据转换到输入信号操作。数据转换器部（13）包括：用于离散输入信号以产生具有较低的分辨率大小逐比输入信号的信号的信号处理部（133）; 减去从具有较低的分辨率，以提取量化噪声的信号中的输入信号的减法器部分（134）; 为接近预期波频率中提取量化噪声的滤波器（135）; 和用于从具有较低分辨率的信号中的预期的波频率附近除去的量化噪声的减法器部分（136）。

8. 发明公开

EP1372282A3 Transmitting circuit device and wireless communications device 审中-公开
标题翻译：发送电路装置和无线通信装置
公开(公告)号：EP1372282A3
公开(公告)日：2005-11-09
申请号：EP03013265.8
申请日：2003-06-12
申请人： MATSUSHITA ELECTRIC INDUSTRIAL CO., LTD.
发明人： Matsuura, Toru , Adachi, Hisashi
IPC分类号： H04B14/06 , H03M3/00
CPC分类号： H04B14/06
摘要： A transmitting circuit device (201) has a first signal source (202) which outputs a first signal that is a binary or multilevel discrete analog signal or a discrete analog signal with a binary or multilevel envelope and that has signal components and quantization noise components; a second signal source (203) which outputs a second signal composed of the quantization noise components; a first amplifier (204) which amplifies the first signal; and a combiner (206) which cancels out the quantization noise components by combining an output of the first amplifier and the second signal.

9. 发明公开

EP1583245A2 Data converter device and data conversion method, and transmitter circuit, communications device and electronic device using the same 审中-公开
标题翻译：装置和方法用于数据传输电路的转换，并且因此通信装置配备电子电路
公开(公告)号：EP1583245A2
公开(公告)日：2005-10-05
申请号：EP05005116.8
申请日：2005-03-09
申请人： MATSUSHITA ELECTRIC INDUSTRIAL CO., LTD.
发明人： Matsuura, Toru , Adachi, Hisashi
IPC分类号： H03M3/00 , H04L27/36
CPC分类号： H03M3/368 , H03M3/458
摘要： The present invention aims to provide a transmitter circuit that is capable of suppressing quantization noise and operating with a high efficiency, a data converter section (13) and a data conversion method for use therein, and a communications device using the same. The data converter section (13) of the present invention performs a predetermined data conversion operation on an input signal. The data converter section (13) includes: a signal processing section (133) for discretizing the input signal to produce a signal having a lower resolution magnitude-wise than that of the input signal; a subtractor section (134) for subtracting the input signal from the signal having a lower resolution to extract quantization noise; a filter (135) for extracting quantization noise near an intended wave frequency; and a subtractor section (136) for removing the quantization noise near the intended wave frequency from the signal having a lower resolution.

10. 发明公开

EP1133052A2 Delay circuit and feedforward amplifier 有权
标题翻译： VerzögerungsschaltungundVorwärtskopplungsverstärker
公开(公告)号：EP1133052A2
公开(公告)日：2001-09-12
申请号：EP01105597.7
申请日：2001-03-06
申请人： MATSUSHITA ELECTRIC INDUSTRIAL CO., LTD.
发明人： Matsuyoshi, Toshimitsu , Matsuura, Toru , Ishida, Kaoru , Fujiwara, Seiji
IPC分类号： H03H7/30
CPC分类号： H03H7/30
摘要： Adelay circuit in which amplitude characteristic and delay time characteristic of the output signals do not have any ripple relative to the length of the transmission line is provided. The delay circuit includes a circuit that makes a part of signals distributed into two parts by the power divider (103) to be identical in amplitude and inverse in phase relative to the component of signals outputted from the terminal-a directly to the terminal-c of the circulator (104). By composing with the power combiner (107), both signals are offset each other at the output terminal. As a result, only the signals that are inputted from the input terminal (101) and transmitted through the circulator (104) and the open-ended transmission line (105) are outputted to the output terminal (102).
摘要翻译：提供了其中输出信号的幅度特性和延迟时间特性相对于传输线的长度没有任何纹波的Adelay电路。该延迟电路包括一个电路，其使由功率分配器（103）分成两部分的信号的一部分相对于从端子a直接输出到端子c的信号的分量在幅度上相位相反，的循环器（104）。通过与功率组合器（107）组合，两个信号在输出端子处彼此偏移。结果，只有从输入端（101）输入并通过循环器（104）和开路传输线（105）传输的信号才被输出到输出端（102）。

你已经成功收藏专利！

检索式保存成功!

IPRDB

热门服务

关于我们

友情链接

联系方式