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1.发明公开Digital signal transmission apparatus and method as well as a digital signal receiving apparatus and method and a digital signal transmission system 有权装置和方法，用于数字信号的传输，设备和方法，用于数字信号接收和信号传输系统，用于数字
公开(公告)号：EP1850550A3
公开(公告)日：2013-02-20
申请号：EP07251407.8
申请日：2007-03-30
申请人： Sony Corporation
CPC分类号： H04L27/2601 , H04L5/143 , H04N5/38 , H04N5/455
摘要： A digital signal transmission apparatus that transmits a digital signal to another apparatus via a coaxial cable includes a signal divider configured to divide a digital signal to be transmitted into a plurality of signal groups; a plurality of modulators configured to modulate each of the plurality of signal groups obtained by the signal divider by using an orthogonal frequency division multiplexing method; a plurality of frequency shifters configured to shift each of the frequency bands of a plurality of modulation signals generated by the plurality of modulators from a baseband to mutually different frequency bands; and a signal sender configured to combine a plurality of modulation signals whose frequency bands are shifted by the plurality of frequency shifters and to transmit the signals to the coaxial cable.
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2.发明公开Digital signal transmission apparatus and method as well as a digital signal receiving apparatus and method and a digital signal transmission system 有权BidirektionaleÜbertragung数位板SignaleüberKoaxialkabel
公开(公告)号：EP1850550A2
公开(公告)日：2007-10-31
申请号：EP07251407.8
申请日：2007-03-30
申请人： Sony Corporation
IPC分类号： H04L27/26
CPC分类号： H04L27/2601 , H04L5/143 , H04N5/38 , H04N5/455
摘要： A digital signal transmission apparatus that transmits a digital signal to another apparatus via a coaxial cable includes a signal divider configured to divide a digital signal to be transmitted into a plurality of signal groups; a plurality of modulators configured to modulate each of the plurality of signal groups obtained by the signal divider by using an orthogonal frequency division multiplexing method; a plurality of frequency shifters configured to shift each of the frequency bands of a plurality of modulation signals generated by the plurality of modulators from a baseband to mutually different frequency bands; and a signal sender configured to combine a plurality of modulation signals whose frequency bands are shifted by the plurality of frequency shifters and to transmit the signals to the coaxial cable.
摘要翻译： 经由同轴电缆将数字信号发送到另一装置的数字信号传输装置包括：信号分配器，被配置为将要传输的数字信号划分成多个信号组; 多个调制器，被配置为通过使用正交频分复用方法来调制由信号分频器获得的多个信号组中的每一个; 多个移频器，被配置为将由所述多个调制器生成的多个调制信号的每个频带从基带移位到相互不同的频带; 以及信号发送器，被配置为组合多个调频信号，所述多个调制信号的频带被所述多个频率移位器偏移并将信号发送到所述同轴电缆。
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公开(公告)号：EP0110719A1
公开(公告)日：1984-06-13
申请号：EP83307307.5
申请日：1983-11-30
申请人： SONY CORPORATION
发明人： Ishikawa, Nobuyuki
IPC分类号： H03B5/36
CPC分类号： H03B5/36 , H03B5/32 , H03B2200/0008 , H03B2200/0026 , H03B2200/0034 , H03B2200/0036 , H03B2200/0066 , H03B2200/0078 , H03B2200/0098 , H03D7/165
摘要： @ An oscillating circuit is disclosed which includes first stage (21 A) and second stage (21 B) amplifiers, a feedback circuit formed of a capacitor (Ca) and a resistor (Ra) and connected between the output terminal of the second stage amplifier and the input terminal of the first stage amplifier and a crystal resonator (X) having a predetermined resonance frequency connected to the first stage amplifier. In this case, the total gain of the oscillating circuit is determined in such a manner that the oscillating circuit initiates its oscillation only when the crystal resonator is connected to the first stage amplifier.
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公开(公告)号：EP0660504B1
公开(公告)日：2001-11-14
申请号：EP94402936.2
申请日：1994-12-20
申请人： SONY CORPORATION
发明人： Ishikawa, Nobuyuki , Imai, Tadashi
IPC分类号： H03B5/12
CPC分类号： H03B5/1231 , H03B5/1218 , H03B5/1243 , H03B2200/0034 , H03B2200/0036 , H03B2200/004 , H03B2200/0098 , H03B2201/0208 , H03D7/00
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5.发明公开Receiving apparatus, imaging apparatus, and receiving method 审中-公开Empfangsvorrichtung，Bildgebungsvorrichtung und Empfangsverfahren
公开(公告)号：EP2216903A1
公开(公告)日：2010-08-11
申请号：EP10152479.1
申请日：2010-02-03
申请人： Sony Corporation
IPC分类号： H03G3/20
CPC分类号： H03G3/3078
摘要： A receiving apparatus includes: a signal-level detecting unit detecting a signal level of an input signal; a first signal-level converting unit including amplifiers, capturing the input signal and converting a signal level of the input signal; a switching unit switching an output of a signal whose level is converted by the amplifiers; a switching control unit selecting a specific amplifier out of the amplifiers and controlling the switching unit to select an output signal from the selected amplifier; a band-pass filter allowing only a predetermined frequency band in the signal, the output of which is switched by the switching unit, to pass; a second signal-level converting unit converting a signal level of an output signal from the amplifier into a predetermined signal level; a mixer mixing the signal passed through the band-pass filter, the signal level of which is converted by the second signal-level converting unit, and an oscillation signal to generate an intermediate frequency signal; and a demodulating unit demodulating the intermediate frequency signal.
摘要翻译： 接收装置包括：信号电平检测单元，检测输入信号的信号电平; 第一信号电平转换单元，包括放大器，捕获输入信号并转换输入信号的信号电平; 切换单元切换其电平由放大器转换的信号的输出; 切换控制单元从放大器中选择特定的放大器，并控制切换单元选择来自所选放大器的输出信号; 只允许通过切换单元切换输出的信号中的预定频带的带通滤波器通过; 第二信号电平转换单元，将来自放大器的输出信号的信号电平转换为预定信号电平; 混合通过带通滤波器的信号的混频器，其信号电平由第二信号电平转换单元转换，并产生振荡信号以产生中频信号; 以及解调单元，对所述中频信号进行解调。
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公开(公告)号：EP0432052A2
公开(公告)日：1991-06-12
申请号：EP90403498.0
申请日：1990-12-07
申请人： SONY CORPORATION
摘要： An RF modulator comprising an FM modulator (22) supplied with an audio signal, an AM modulator (24) supplied with the FM audio output and a video signal, an oscillator (32) for generating a sound subcarrier signal, and an oscillator (7) for generating a main carrier signal. Each of the oscillators (32, 17) consists of a VCO with a PLL circuit, and the entire components are composed of a single IC chip so as to be formed into a compact miniature structure. A modified RF modulator includes a PLL circuit (15) for varying the oscillation frequency of a VCO (17) by a variable frequency divider (18), and a modulation circuit supplied with a modulating signal and the oscillation output of the VCO (17). The division ratio (integer) of the variable frequency divider (18) is continuously varied, and the reference frequency of a reference oscillator (16) is set to be less than a predetermined channel interval frequency, thereby reducing the frequency error in the modulated signal output.
摘要翻译： 一种RF调制器，包括提供有音频信号的FM调制器（22），提供有FM音频输出的AM调制器（24）和视频信号，用于产生声副载波信号的振荡器（32）和振荡器 ）用于产生主载波信号。 每个振荡器（32,17）由具有PLL电路的VCO组成，并且整个部件由单个IC芯片组成，以便形成为紧凑的微型结构。 经修改的RF调制器包括用于通过可变分频器（18）改变VCO（17）的振荡频率的PLL电路（15），以及被提供调制信号和VCO（17）的振荡输出的调制电路， 。 可变分频器（18）的分频比（整数）连续变化，参考振荡器（16）的参考频率设定为小于预定的频道间隔频率，从而降低调制信号中的频率误差 输出。
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公开(公告)号：EP1850550B1
公开(公告)日：2014-08-06
申请号：EP07251407.8
申请日：2007-03-30
申请人： Sony Corporation
CPC分类号： H04L27/2601 , H04L5/143 , H04N5/38 , H04N5/455
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公开(公告)号：EP0660504A1
公开(公告)日：1995-06-28
申请号：EP94402936.2
申请日：1994-12-20
申请人： SONY CORPORATION
发明人： Ishikawa, Nobuyuki , Imai, Tadashi
IPC分类号： H03B5/12
CPC分类号： H03B5/1231 , H03B5/1218 , H03B5/1243 , H03B2200/0034 , H03B2200/0036 , H03B2200/004 , H03B2200/0098 , H03B2201/0208 , H03D7/00
摘要： An oscillator is provided with an oscillation circuit including two oscillation transistors (Q₂,Q₁), comprising a differential pair, and a resonance circuit (RSN a ) connected in common to the bases of the oscillation transistors (Q₂,Q₁). The bases of the oscillation transistors (Q₂,Q₁) are short-circuited by a coil (L₂), a center tap coil (L₃) is connected in parallel to the resonance circuit (RSN a ), and variable capacitance diodes (VC₁,VC₂) in the resonance circuit (RSN a ) are driven by a coil (L₄) connected to a mixing circuit (MIX). Due to this, it is possible to prevent the occurrence of low frequency noise, possible to realise a completely balanced operation, possible to avoid the oscillation carrier flowing into the power source and ground, and, when the oscillation circuit is used in a television tuner, possible to reduce the noise in a television picture.
摘要翻译： 一个振荡器装有一个包括两个振荡晶体管（Q 2，Q 1）的振荡电路，该振荡电路包括一个差分对，以及一个与振荡晶体管（Q 2，Q 1）的基极共同连接的谐振电路（RSNa）。 振荡晶体管（Q 2，Q 1）的基极由线圈（L 2）短路，中心抽头线圈（L 3）与谐振电路（RSNa）并联连接，变容二极管（VC 1，VC 2） 在谐振电路（RSNa）中由连接到混频电路（MIX）的线圈（L 4）驱动。 由此，能够防止产生低频噪声，能够实现完全平衡的动作，能够避免振荡载波流入电源和接地，并且在将振荡电路用于电视调谐器的情况下 ，可以减少电视画面中的噪音。
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公开(公告)号：EP0432052A3
公开(公告)日：1991-10-02
申请号：EP90403498.0
申请日：1990-12-07
申请人： SONY CORPORATION
摘要： An RF modulator comprising an FM modulator (22) supplied with an audio signal, an AM modulator (24) supplied with the FM audio output and a video signal, an oscillator (32) for generating a sound subcarrier signal, and an oscillator (7) for generating a main carrier signal. Each of the oscillators (32, 17) consists of a VCO with a PLL circuit, and the entire components are composed of a single IC chip so as to be formed into a compact miniature structure. A modified RF modulator includes a PLL circuit (15) for varying the oscillation frequency of a VCO (17) by a variable frequency divider (18), and a modulation circuit supplied with a modulating signal and the oscillation output of the VCO (17). The division ratio (integer) of the variable frequency divider (18) is continuously varied, and the reference frequency of a reference oscillator (16) is set to be less than a predetermined channel interval frequency, thereby reducing the frequency error in the modulated signal output.
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