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    • 5. 发明公开
    • Receiver capable of receiving analog broadcast and digital broadcast and IC for the same
    • Empfängerfüranaloge und digitale Rundfunkempfang
    • EP1085664A2
    • 2001-03-21
    • EP00307905.0
    • 2000-09-13
    • SONY CORPORATION
    • Okanobu, Taiwa
    • H04B1/28H04H1/00
    • H04N5/4401H04B1/406H04H20/30H04H40/18H04N5/46H04N21/426H04N21/42638
    • There is provided a receiver equipped with a first and a second mixer circuits for performing the frequency conversion of a received signal into two intermediate-frequency signals, phases of which are orthogonal to each other, by means of two local oscillation signals, and a plurality of filter circuits for taking the intermediate-frequency signals out of the output signals of the first and the second mixer circuits. The receiver is further equipped with a demodulation circuit for taking a signal indicating broadcast contents of an analog broadcast or a digital broadcast out of the intermediate-frequency signals taken out by the filter circuits. The frequencies of the local oscillation signals are made to be a frequency apart from the carried frequency of the received signal by the intermediate frequency of the intermediate-frequency signals at a time of receiving the analog broadcast, and the frequency of the local oscillation signals are made to be a frequency equal to the center frequency of the received signal at a time of receiving the digital broadcast.
    • 提供了一种装备有第一和第二混频器电路的接收机,用于通过两个本地振荡信号将接收信号的频率转换执行到彼此正交的两个中频信号,并且多个 用于从第一和第二混频器电路的输出信号中取出中频信号的滤波电路。 接收机还配备有解调电路,用于从由滤波器电路取出的中频信号中取出表示模拟广播或数字广播的广播内容的信号。 在接收到模拟广播时,本地振荡信号的频率被设定为与接收信号的携带频率不同的中频信号的中频,本地振荡信号的频率为 在接收数字广播时被设为等于接收信号的中心频率的频率。
    • 6. 发明公开
    • SRPP circuit having wide frequency range
    • 绅士绅士
    • EP0963038A3
    • 2000-05-17
    • EP99304108.6
    • 1999-05-26
    • SONY CORPORATION
    • Okanobu, Taiwa
    • H03F3/26H02M3/337G05F1/59G05F3/22H02M3/158
    • H03F3/3084H03F3/50
    • In an SRPP circuit, a transistor Q11 has a collector connected to a power supply terminal T13 through a resistor R11 and an emitter connected to the collector of a transistor Q12 having the same polarity as that of the transistor Q11. The emitter of the transistor Q12 is connected to the ground. The collector of the transistor Q11 is connected to the emitter of a transistor Q13 having the polarity opposite to that of the transistor Q11, and the collector of the transistor Q13 is connected to the base of the transistor Q12. A bias voltage V13 is applied to the base of the transistor Q13. An input signal Vin is supplied to the base of the transistor Q11 to extract an output signal from a node between the emitter of the transistor Q11 and the collector of the transistor Q12.
    • 在SRPP电路中,晶体管Q11具有通过电阻R11连接到电源端子T13的集电极和与晶体管Q12的集电极连接的发射极,其具有与晶体管Q11的极性相同的极性。 晶体管Q12的发射极连接到地。 晶体管Q11的集电极连接到具有与晶体管Q11的极性相反极性的晶体管Q13的发射极,并且晶体管Q13的集电极连接到晶体管Q12的基极。 偏置电压V13施加到晶体管Q13的基极。 输入信号Vin被提供给晶体管Q11的基极,以从晶体管Q11的发射极和晶体管Q12的集电极之间的节点提取输出信号。
    • 7. 发明公开
    • Receiver for receiving both analog and digital broadcast programmes, which are being transmitted on adjacent frequency bands
    • 接收器,用于模拟和数字广播节目的上相邻频率发送的接收
    • EP0966120A2
    • 1999-12-22
    • EP99304707.5
    • 1999-06-16
    • SONY CORPORATION
    • Okanobu, Taiwa
    • H04H1/00
    • H04H20/33H04H40/18H04H2201/17
    • A reception circuit 10 for receiving an analog broadcast and outputting an audio signal based on the analog broadcast is provided with a digital demodulation circuit 28 for digitally demodulating an intermediate frequency signal obtained in the reception circuit 10 at the reception time of the digital broadcast and outputting the audio signal based on the digital broadcast, a control circuit 34 for controlling the operating power source voltage of the digital demodulation circuit 28, a detection circuit 31 for detecting the reception of the analog broadcast, and a detection circuit 32 for detecting the reception of the digital broadcast. Only when the detection circuit 31 detects the broadcast wave signal of the analog broadcast at the station-selection time and the detection circuit 32 detects the broadcast wave signal of the digital broadcast, is the operating power source voltage supplied to the digital demodulation circuit 28 by the control circuit 34.
    • 用于接收模拟广播的和输出开始基于模拟广播的音频信号的接收电路10被提供有一个数字解调电路28,用于在在所述数字广播和输出廷的接收时间在接收电路10获得的中频信号进行数字解调 基于数字广播时,用于控制所述数字解调电路28,用于检测模拟广播的接收的检测电路31的工作电源电压的控制电路34的音频信号,和用于检测的接收的检测电路32 数字广播。 只有当检测电路31检测在电台选择时间模拟广播和检测电路32的广播波信号检测数字广播的广播波信号,是由提供给数字解调电路28的工作电源电压 控制电路34
    • 9. 发明公开
    • Receiver capable of receiving analog broadcast and digital broadcast and IC for the same
    • Empfängerund Integrierte Schaltungfüranaloge und digitale Runkdunkempfang
    • EP1085664A3
    • 2003-11-19
    • EP00307905.0
    • 2000-09-13
    • SONY CORPORATION
    • Okanobu, Taiwa
    • H04B1/28H04H1/00H04B1/26H04B1/30H04N5/44
    • H04N5/4401H04B1/406H04H20/30H04H40/18H04N5/46H04N21/426H04N21/42638
    • There is provided a receiver equipped with a first and a second mixer circuits for performing the frequency conversion of a received signal into two intermediate-frequency signals, phases of which are orthogonal to each other, by means of two local oscillation signals, and a plurality of filter circuits for taking the intermediate-frequency signals out of the output signals of the first and the second mixer circuits. The receiver is further equipped with a demodulation circuit for taking a signal indicating broadcast contents of an analog broadcast or a digital broadcast out of the intermediate-frequency signals taken out by the filter circuits. The frequencies of the local oscillation signals are made to be a frequency apart from the carried frequency of the received signal by the intermediate frequency of the intermediate-frequency signals at a time of receiving the analog broadcast, and the frequency of the local oscillation signals are made to be a frequency equal to the center frequency of the received signal at a time of receiving the digital broadcast.
    • 提供了一种装备有第一和第二混频器电路的接收机,用于通过两个本地振荡信号将接收信号的频率转换执行到彼此正交的两个中频信号,并且多个 用于从第一和第二混频器电路的输出信号中取出中频信号的滤波电路。 接收机还配备有解调电路,用于从由滤波器电路取出的中频信号中取出表示模拟广播或数字广播的广播内容的信号。 在接收到模拟广播时,本地振荡信号的频率被设定为与接收信号的携带频率不同的中频信号的中频,本地振荡信号的频率为 在接收数字广播时被设为等于接收信号的中心频率的频率。
    • 10. 发明公开
    • Tuner IC and receiving apparatus employing the same
    • Integrierte Tunerschaltung und Empfangsvorrichtung,die diese Schaltung benutzt
    • EP1113573A1
    • 2001-07-04
    • EP00311638.1
    • 2000-12-22
    • SONY CORPORATION
    • Okanobu, Taiwa
    • H03D7/16
    • H03D7/165H03D7/163
    • A reception IC comprising a received-signal-selecting circuit (15) for selecting one of a plurality of received signals with reception bands different from each other, a frequency dividing circuit (42,43) for dividing the frequency of an oscillation signal (S41) supplied thereto and outputting a plurality of divided-frequency signals (SHA,SHB,SLA,SLB) having frequencies different from each other, a divided-frequency-signal-selecting circuit (44A,44B) for selecting one of the divided-frequency signals output by the frequency dividing circuit (42,43) as a local-oscillation signal, and a mixer circuit (31A,31B) for being input the local-oscillation signal output by the divided-frequency-signal-selecting circuit (44A,44B) and the received signal selected by the received-signal-selecting circuit (15), converting the frequency of the received signal and outputting the received signal with the converted frequency as an intermediate-frequency signal (SIFA,SIFB), wherein the received-signal-selecting circuit (15) selects one of the received signals for a selected reception band, the divided-frequency-signal-selecting circuit (44A,44B) selects one of the divided-frequency signals for the selected reception band, and by changing the frequency of the local oscillation signal for each selected reception band, the frequency of the received signal is changed.
    • 一种接收IC,包括:接收信号选择电路(15),用于选择具有彼此不同的接收频带的多个接收信号中的一个;分频电路(42,43),用于分频振荡信号的频率(S41 ),输出频率不同的多个分频信号(SHA,SHB,SLA,SLB),分频信号选择电路(44A,44B),用于选择分频 作为本地振荡信号的分频电路(42,43)输出的信号,以及用于输入由分频信号选择电路(44A,32B)输出的本机振荡信号的混频电路(31A,31B) 44B)和由接收信号选择电路(15)选择的接收信号,转换接收信号的频率并以转换频率输出接收信号作为中频信号(SIFA,SIFB),其中接收到的信号 -signal-SEL 分频电路(15)选择所选接收频带的接收信号之一,分频信号选择电路(44A,44B)选择所选接收频带的分频信号之一,并通过改变频率 对于每个所选接收频带的本地振荡信号,接收信号的频率被改变。