会员体验
专利管家(专利管理)
工作空间(专利管理)
风险监控(情报监控)
数据分析(专利分析)
侵权分析(诉讼无效)
联系我们
交流群
官方交流:
QQ群: 891211   
微信请扫码    >>>
现在联系顾问~
热词
    • 38. 发明申请
    • PROCEDURE AND DEVICE FOR TRANSMITTING INFORMATION BY RADIO
    • 通过无线电发送信息的程序和设备
    • WO99065200A2
    • 1999-12-16
    • PCT/FI1999/000487
    • 1999-06-04
    • H04B1/00H04B1/04H04J9/00H04K1/00H04L27/32
    • H04B1/04H04B1/00H04J9/00H04K1/00
    • The invention concerns a procedure for transmitting one middle channel, a first side channel and a second side channel in a radio system. According to the invention, the middle channel is transmitted as a frequency-modulated (FM) radio signal modulated by a suitable frequency, a signal symmetrically amplitude-modulated (AM) with respect to the mid-frequency of the middle channel is generated, a first amplitude-modulated single side band (LSB) is formed from the amplitude-modulated signal, a second amplitude-modulated single side band (USB) is formed from the amplitude-modulated signal, the first single side band (LSB) is modulated by the information in the first side channel, thus forming two side bands for the first single side band, the second single side band (USB) is modulated by the information in the second side channel, thus forming two side bands for the second single side band, the frequency-modulated (FM) signal, the first single side band (SSB) and the second single side band (SSB) are combined in a combiner so that all three channels are transmitted simultaneously.
    • 本发明涉及在无线电系统中发送一个中间信道,第一侧信道和第二侧信道的过程。 根据本发明,中频信道作为被适当频率调制的调频(FM)无线电信号发送,产生相对于中频信道的中频的对称幅度调制(AM)的信号, 第一幅度调制单边带(LSB)由幅度调制信号形成,第二调幅单边带(USB)由调幅信号形成,第一单边带(LSB)由 第一侧通道中的信息,由此形成用于第一单边带的两个边带,第二单边带(USB)由第二侧信道中的信息调制,从而形成用于第二单边带的两个边带 ,频率调制(FM)信号,第一单边带(SSB)和第二单边带(SSB)在组合器中组合,使得所有三个信道同时传输。
    • 39. 发明申请
    • CLOCK REGENERATION CIRCUIT
    • 时钟再生电路
    • WO98057470A1
    • 1998-12-17
    • PCT/JP1998/002553
    • 1998-06-10
    • H03J7/06H03L7/18H04J9/00H04L7/06H04L27/06H04L27/22
    • H04L7/06H03L7/1806H04J9/00H04L27/066
    • A clock regeneration circuit for regenerating a clock signal for demodulating data from an AM data multiplex modulated signal where digitally modulated signals are multiplexed in the same frequency band as those of an amplitude-modulated signal at the same time. The carrier for an amplitude-modulated signal is extracted from an AM data multiplex modulated signal where digitally modulated signals are multiplexed in the same frequency band as those of the amplitude-modulated signal at the same time through a band-pass filter (1), and the oscillation frequency of a voltage-controlled oscillator (5) is controlled by the output of a phase comparator (3) through a loop filter (4). The oscillation output of the voltage-controlled oscillator (5) is supplied to a direct digital synthesizer (6) and the phase of the carrier extracted through the band-pass filter (1) is compared with the phase of the output of the direct digital synthesizer (6) by means of the phase comparator (3). The oscillation output of the voltage-controlled oscillator (5) is then synchronized with the carrier for the amplitude-modulated signal to produce a clock signal for demodulating data.
    • 一种时钟再生电路,用于再生时钟信号,用于从AM数据多路复用调制信号中解调数据,其中数字调制信号被同时被调制信号与幅度调制信号复用在同一频带。 调幅信号的载波从AM数据多路复用调制信号中提取,其中数字调制信号通过带通滤波器(1)同时被调制信号与幅度调制信号在同一频带中被多路复用, 并且通过环路滤波器(4)通过相位比较器(3)的输出来控制压控振荡器(5)的振荡频率。 压控振荡器(5)的振荡输出被提供给直接数字合成器(6),并且将通过带通滤波器(1)提取的载波的相位与直接数字合成器(6)的输出相位进行比较 合成器(6)通过相位比较器(3)。 然后,压控振荡器(5)的振荡输出与幅度调制信号的载波同步,以产生用于解调数据的时钟信号。
    • 40. 发明申请
    • A METHOD AND A CIRCUIT FOR THE TRANSFER OF DATA INFORMATION
    • 用于传输数据信息的方法和电路
    • WO1998028847A1
    • 1998-07-02
    • PCT/DK1997000592
    • 1997-12-22
    • DSC COMMUNICATIONS A/SGLERSKOV, Christian
    • DSC COMMUNICATIONS A/S
    • H03K07/10
    • H04J9/00
    • A method of transferring relatively low frequency data information on a data channel for relatively high frequency data transmission comprises modulating the data rate of the relatively high frequency data channel in accordance with the low frequency data information. The phase variation generated thereby is controlled so as to be within a range which is defined upwardly by a predetermined value and defined downwardly by the phase variation which occurs in the data channel at an unmodulated data rate. This ensures that additional data information may be transferred in a network in which a determined phase variation (jitter) requirement (34, fig. 5) is to be observed. A circuit in the form of a buffer (22) and a multiplexer (23) controlled by a phase-locked loop (25, 26, 27) to restrict phase variations (jitter) out of a transmitter (20) additionally comprises a circuit (29) so that the multiplexer (23) depends on a signal (DATA).
    • 在相对高频数据传输的数据信道上传送相对低频数据信息的方法包括根据低频数据信息调制相对高频数据信道的数据速率。 由此产生的相位变化被控制在向上定义预定值并由未调制数据速率在数据通道中出现的相位变化向下定义的范围内。 这确保附加的数据信息可以在其中要被观察到确定的相位变化(抖动)要求(图5中的34)的网络中传送。 缓冲器(22)形式的电路和由锁相环(25,26,27)控制的多路复用器(23),以限制发射机(20)的相位变化(抖动),还包括电路( 29),使得多路复用器(23)取决于信号(DATA)。