专利快速检索-快速检索全球专利，免费商用专利数据库-IPRDB

61. 发明授权

US07664205B2 Frequency-shift-keying demodulator and method of frequency-shift-keying 有权
标题翻译：频移键控解调器和频移键控方法
公开(公告)号：US07664205B2
公开(公告)日：2010-02-16
申请号：US11237342
申请日：2005-09-28
申请人： Zhaocheng Wang , Masahiro Uno
发明人： Zhaocheng Wang , Masahiro Uno
IPC分类号： H03D3/00 , H04L27/14 , H04L27/06
CPC分类号： H04L27/14 , H04L27/144
摘要： A frequency-shift-keying demodulator including a phase shifter for shifting the phase of an input signal by a predetermined degree and outputting a shifted signal, a combining unit for combining the input signal and the shifted signal and for outputting a corresponding signal, and a low-pass filter for filtering the signal output by the combining unit and outputting a low-pass filtered signal, the bandwidth of the low-pass filter being matched with the bandwidth of a data signal included in the input signal, such that the combining unit includes at least one adder for adding the input signal and the shifted signal, and outputting an added signal, and at least one square law detector for receiving the added signal output by the adder and outputting a squared signal which is the square of the added signal, wherein the combining unit outputs the squared signal to the low-pass filter.
摘要翻译：一种频移键控解调器，包括用于将输入信号的相位偏移预定程度并输出移位信号的移相器，用于组合输入信号和移位信号并输出相应信号的组合单元，以及低通滤波器，用于对由组合单元输出的信号进行滤波并输出低通滤波信号，低通滤波器的带宽与包括在输入信号中的数据信号的带宽相匹配，使得组合单元包括至少一个加法器，用于将输入信号和移位的信号相加，并输出相加的信号;以及至少一个平方律检测器，用于接收由加法器输出的相加信号，并输出作为相加信号的平方的平方信号，其中所述组合单元将所述平方信号输出到所述低通滤波器。

62. 发明授权

US07551135B2 Transmitting device, receiving device and method for establishing a wireless communication link 有权
标题翻译：用于建立无线通信链路的发送设备，接收设备和方法
公开(公告)号：US07551135B2
公开(公告)日：2009-06-23
申请号：US11865366
申请日：2007-10-01
申请人： Masahiro Uno , Zhaocheng Wang
发明人： Masahiro Uno , Zhaocheng Wang
IPC分类号： H04L12/56 , H01Q1/00
CPC分类号： H04W16/28 , H04W72/08 , H04W76/10 , H04W84/18
摘要： The present invention comprises a method for establishing a wireless communication link between a first communication device (1) having a narrow beam antenna (2) adapted to be steered to different positions and a second communication device (10), comprising the steps of transmitting a link request signal from said first communication device (1) to said second communication device (10) via said narrow beam antenna, wherein said link request signal comprises information relating to a current position of the narrow beam antenna, and obtaining, in case said link request signal is received in said second communication device (10), channel quality information representative of a current transmission path. The invention further comprises a transmitting device and a receiving device for executing, said method.
摘要翻译：本发明包括一种用于在具有适于被转向不同位置的窄波束天线（2）的第一通信设备（1）和第二通信设备（10）之间建立无线通信链路的方法，包括以下步骤：经由所述窄波束天线从所述第一通信设备（1）到所述第二通信设备（10）的链路请求信号，其中所述链路请求信号包括与所述窄波束天线的当前位置相关的信息，并且在所述链路在所述第二通信设备（10）中接收到表示当前传输路径的信道质量信息的请求信号。本发明还包括用于执行所述方法的发送装置和接收装置。

63. 发明授权

US07546038B2 Method for wireless optical transmission of data and wireless optical data transmission system 有权
标题翻译：无线光传输数据和无线光数据传输系统的方法
公开(公告)号：US07546038B2
公开(公告)日：2009-06-09
申请号：US11339484
申请日：2006-01-26
申请人： Zhaocheng Wang , Kao-Cheng Huang , Masahiro Uno
发明人： Zhaocheng Wang , Kao-Cheng Huang , Masahiro Uno
IPC分类号： H04B10/00 , H04B10/10
CPC分类号： H04B10/1141 , H04B10/116
摘要： The invention relates to a wireless optical data transmission system and a method for wireless optical transmission of data. The system comprises a data stream generator for generating at least two parallel data streams (18.1, 18.2, 18.3). The parallel data streams are transmitted by a number of separate optical transmitting devices (8, 9, 10) separately by emitting first optical signals. The system further comprises a corresponding number of detectors (19, 20, 21) for detecting the first optical signals and converting them into respective second signals (26.1, 26.2, 26.3) and an error correction unit (31) for correcting the amended second signals. Within a predistortion (29) unit each second signal (26.1, 26.2, 26.3) is amended individually with respect to a transmission channel used.
摘要翻译：本发明涉及无线光数据传输系统和数据无线光传输方法。该系统包括用于产生至少两个并行数据流（18.1,18.2,18.3）的数据流发生器。通过发射第一光信号，并行数据流由多个单独的光发送装置（8,9,10）分别发送。该系统还包括相应数量的检测器（19,20,21），用于检测第一光信号并将其转换成相应的第二信号（26.1,26.2,26.3）和用于校正经修改的第二信号的纠错单元（31）。在预失真（29）单元内，相对于所使用的传输信道单独修改每个第二信号（26.1,26.2,26.3）。

64. 发明申请

US20060067433A1 Frequency-shift-keying demodulator and method of frequency-shift-keying 有权
标题翻译：频移键控解调器和频移键控方法
公开(公告)号：US20060067433A1
公开(公告)日：2006-03-30
申请号：US11237342
申请日：2005-09-28
申请人： Zhaocheng Wang , Masahiro Uno
发明人： Zhaocheng Wang , Masahiro Uno
IPC分类号： H04L27/14
CPC分类号： H04L27/14 , H04L27/144
摘要： The present invention relates to a frequency-shift-keying demodulator (1, 1′) comprising a phase shifter 2 for shifting the phase of an input signal i(t) by a predetermined degree and for outputting a shifted signal Id(t), a combining unit (3, 4; 31, 32, 33, 41, 42) for combining the input signal i(t) and the shifted signal Id(t) output by the phase shifter 2 and for outputting a corresponding signal r(t) and a low-pass filter 5 for filtering the signal r(t) output by the combining unit (3, 4; 31, 32, 33, 41, 42), and for outputting a low-pass filtered signal rLP(t) the bandwidth of said low-pass filter 5 being matched with the bandwidth of a data signal contained in said input signal i(t). According to the present invention said combining unit (3, 4; 31, 32, 33, 41, 42) comprises at least one adder (3; 31, 32) for adding the input signal i(t) and the shifted signal Id(t) output by the phase shifter 2 and for outputting an added signal and at least one square law detector (4; 41, 42) for receiving the added signal output by the adder (3; 31, 32) and for outputting a squared signal r(t) which is the square of the added signal wherein the combining unit (3, 4; 31, 32, 33, 41, 42) outputs the squared signal r(t) to the low-pass filter 5. Furthermore, the present invention relates to a method of frequency-shift-keying demodulating an input signal i(t).
摘要翻译：本发明涉及一种频移键控解调器（1,1'），它包括用于将输入信号i（t）的相位偏移预定程度并用于输出移位信号Id（t）的移相器2，用于组合输入信号i（t）和由移相器2输出的移位信号Id（t）并用于输出相应的信号r（t）的组合单元（3,4; 31,32,33,41,42））和用于滤波由组合单元（3,4; 31,32,33,41,42）输出的信号r（t）的低通滤波器5，并且用于输出低通滤波信号r （t）所述低通滤波器5的带宽与包含在所述输入信号i（t）中的数据信号的带宽相匹配。

65. 发明申请

US20060045219A1 Backscatter interrogator reception method and interrogator for a modulated backscatter system 有权
标题翻译：用于调制后向散射系统的反向散射询问器接收方法和询问器
公开(公告)号：US20060045219A1
公开(公告)日：2006-03-02
申请号：US11210229
申请日：2005-08-23
申请人： Zhaocheng Wang , Ralf Bohnke , Jochen Rebmann
发明人： Zhaocheng Wang , Ralf Bohnke , Jochen Rebmann
IPC分类号： H03D1/04 , H04L27/22
CPC分类号： G06K7/0008 , H04B1/525
摘要： In a backscatter interrogator reception method, a continuous carrier signal (P1) with a frequency fc is sent from an interrogator (100) to a tag device (110) over a wireless link, the tag device (110) transmits data to the interrogator (100) using a modulated backscatter (P2) signal, and the received modulated backscatter signal (P2) is demodulated by the interrogator (100) to retrieve the data transmitted from the tag device (110). According to the present invention, the interrogator (100) estimates the phase and the amplitude of an inband interferer signal contained in the received modulated backscatter signal (P2), generates a cancellation signal having the opposite phase and the same amplitude as the estimation of the inband interferer signal, and combines said cancellation signal with the received backscatter signal (P2) in order to reduce the influence of the inband interferer signal. In addition, a two-stage interferer cancellation scheme is proposed.
摘要翻译：在反向散射询问器接收方法中，具有频率f C c C的连续载波信号（P 1）通过无线链路从询问器（100）发送到标签装置（110），标签装置（110）使用调制反向散射（P 2）信号向询问器（100）发送数据，并且接收的调制反向散射信号（P 2）由询问器（100）解调，以检索从标签装置（110）发送的数据）。根据本发明，询问器（100）估计包含在接收的调制反向散射信号（P 2）中的带内干扰信号的相位和幅度，产生具有与估计的相位相同且相同振幅的消除信号带内干扰信号，并将所述消除信号与接收的反向散射信号（P 2）组合，以便减少带内干扰信号的影响。另外，提出了两级干扰消除方案。

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