公开(公告)号：US06256359B1

公开(公告)日：2001-07-03

申请号：US08840988

申请日：1997-04-21

Applicant: Takahiko Masumoto ,  Kazuhiro Kimura ,  Hiroshi Kaneko

Inventor： Takahiko Masumoto ,  Kazuhiro Kimura ,  Hiroshi Kaneko

IPC: H04L512

CPC classification number: H04L27/2332 ,  H04H20/22 ,  H04H60/44 ,  H04H2201/13 ,  H04L2027/0028 ,  H04L2027/0048

Abstract: Received signals are digitized by a comparator, and sampled by regenerated clock signals synchronized to a carrier. Biphase symbol data are demodulated based on the sampling data. A biphase decoder circuit performs subtraction of the biphase symbol data to be paired. The subtraction result is compared with threshold values by data judgment circuitry which then judges inversion of the biphase signals to be paired. An RDS-ID detector circuit detects inversion of RDS signals by detection of either continuity or a ratio of signals received for a certain length period. Alternatively, RDS signals are detected by stability of output from the pair judgment circuit to detect a combination of biphase symbols.

Abstract translation: 接收信号由比较器数字化，并通过与载波同步的再生时钟信号采样。 基于采样数据对双相符号数据进行解调。 双相解码器电路执行要配对的双相符号数据的减法。 通过数据判断电路将减法结果与阈值进行比较，然后数据判断电路判断双相信号的配对倒置。 RDS-ID检测器电路通过检测在一定长度周期内接收的信号的连续性或比率来检测RDS信号的反转。 或者，通过对对判断电路的输出的稳定性来检测RDS信号，以检测双相符号的组合。

公开(公告)号：US06195538B1

公开(公告)日：2001-02-27

申请号：US08987104

申请日：1997-12-08

Applicant: Masanao Owaki

Inventor： Masanao Owaki

IPC: H04B0116

CPC classification number: H04H60/27 ,  H04H60/40 ,  H04H60/71 ,  H04H2201/13

Abstract: A FM receiver for receiving text-based multiplex broadcasts includes: a receiving circuit for receiving the text-based multiplex broadcasts; a decoding circuit for taking out the plurality of character program data from a multiplexed signal received by the receiving circuit; a display element for displaying the character program in accordance with data obtained from the decoding circuit; a memory; and control means adapted to request, when a key operation for setting retention using a timer is performed, to designate a selected character program from the plurality of character programs, and to designate the time to carry out the retention using the timer, to retain, when the designated time comes, the character program data designated, in the memory, from the plurality of character program data obtained from the decoding circuit, and to read out, when a calling key operation is performed, the character program data retained in the memory, and to display the character program of the retained data on the display element using the data read out. The receiver is capable of timer presetting with small memory capacity.

Abstract translation: 用于接收基于文本的多路复用广播的FM接收机包括：接收电路，用于接收基于文本的多路复用广播; 解码电路，用于从由接收电路接收的复用信号中取出多个字符节目数据; 显示元件，用于根据从解码电路获得的数据显示字符程序; 记忆 以及控制装置，适于在执行用于使用定时器设置保留的键操作时，从多个字符程序中指定所选择的字符程序，并且使用定时器指定执行保持的时间， 当指定时间到来时，字符节目数据在存储器中从从解码电路获得的多个字符节目数据中指定，并且当执行呼叫键操作时，读出保留在存储器中的字符节目数据 并且使用读出的数据在显示元件上显示保留数据的字符程序。 接收机能够以小的存储容量进行定时预置。

公开(公告)号：US6141646A

公开(公告)日：2000-10-31

申请号：US61465

申请日：1998-04-16

Applicant: Martin Winterer ,  Miodrag Temerinac

Inventor： Martin Winterer ,  Miodrag Temerinac

IPC: G10L13/00 ,  G10K15/00 ,  H04H20/00 ,  H04S1/00 ,  G10K15/04

CPC classification number: H04S1/007 ,  H04H2201/13

Abstract: A digital sound processor for processing multiple standard sound signals and including an audio source which is connected to a digital control input of the sound processor and generates, via externally or internally applied control signals, an audible signal or an audible signal sequence which is fed via the output devices of the sound processor to reproducers.

Abstract translation: 一种用于处理多个标准声音信号并包括连接到声音处理器的数字控制输入的音频源并经由外部或内部施加的控制信号产生可听信号或可听信号序列的数字声音处理器， 声音处理器的输出设备再现。

公开(公告)号：US6038434A

公开(公告)日：2000-03-14

申请号：US855696

申请日：1997-05-08

Applicant: Takashi Miyake

Inventor： Takashi Miyake

IPC: H04B1/06 ,  H04B1/16 ,  H04H20/34 ,  H04H60/27 ,  H04H60/68 ,  H04B1/18

CPC classification number: H04H60/27 ,  H04H20/34 ,  H04H60/68 ,  H04H2201/13

Abstract: A method of receiving and displaying RDS data, which are multiplexed to a broadcast electric wave, includes the steps of: receiving the broadcast electric wave; detecting predetermined data in the RDS data, which are included in the received broadcast electric wave; storing at least one of the detected predetermined data into a memory device; selecting the stored predetermined data on the basis of an externally generated instruction; and displaying the selected predetermined data.

Abstract translation: 一种接收和显示被广播电波复用的RDS数据的方法，包括以下步骤：接收广播电波; 检测包含在所接收的广播电波中的RDS数据中的预定数据; 将检测到的预定数据中的至少一个存储到存储器装置中; 基于外部产生的指令来选择所存储的预定数据; 并显示所选择的预定数据。

公开(公告)号：US5905741A

公开(公告)日：1999-05-18

申请号：US876294

申请日：1997-06-16

Applicant: Hiroshi Matsukuma ,  Kunihiko Higashi

Inventor： Hiroshi Matsukuma ,  Kunihiko Higashi

IPC: H03M13/00 ,  H04H20/00 ,  H04L1/00

CPC classification number: H04L1/0057 ,  H04L1/005 ,  H04L1/0066 ,  H04H2201/13 ,  H04H2201/15

Abstract: Received data is applied in units of blocks to an error correcting unit and a data holding unit. If the error correcting unit normally performs error correction, the output from the error correcting unit is stored in a frame buffer. If the error correcting unit does not normally perform error correction, the data in the data holding unit is stored in the frame buffer. In this manner the first error correction processing is performed. Bit data is sequentially read out in units of bits from each block stored in the frame buffer, subjected to the second error correction processing, and returned to the frame buffer. The third error correction processing is further performed for the data sequentially output in units of blocks from the frame buffer.

Abstract translation: 接收到的数据以块为单位被应用于纠错单元和数据保存单元。 如果纠错单元通常执行纠错，则来自纠错单元的输出被存储在帧缓冲器中。 如果错误校正单元不正常地执行纠错，则数据保持单元中的数据被存储在帧缓冲器中。 以这种方式，执行第一纠错处理。 以存储在帧缓冲器中的每个块的位为单位顺序地读出位数据，进行第二纠错处理，并返回到帧缓冲器。 针对从帧缓冲器以块为单位顺序地输出的数据进一步执行第三纠错处理。

公开(公告)号：US5790958A

公开(公告)日：1998-08-04

申请号：US543317

申请日：1995-10-16

Applicant: Michael S. McCoy ,  Michael E. Hayworth

Inventor： Michael S. McCoy ,  Michael E. Hayworth

IPC: H04H20/34 ,  H04H20/53 ,  H04H60/27 ,  H04B1/16

CPC classification number: H04H60/27 ,  H04H20/34 ,  H04H20/53 ,  H04H2201/13 ,  H04H2201/70

Abstract: A radio data reception system operates within a host processing system such as a personal computer and receives FM broadcast transmissions encoded with either RDS or MBS digital data modulated upon a subcarrier frequency. The radio data reception system operates in one of three modes to interpret the RDS or MBS digital data. A first mode of operation provides a user of the radio data reception system with complete FM stereo tuner functions displayed on a monitor. The radio data reception system receives and decodes RDS data transmissions in the FM stereo tuner mode and displays the RDS data on the monitor. In second and third modes of operation, the radio data reception system receives and processes MBS digital data. In the second mode of operation, the MBS data is used by the host processing system to monitor pages received by a user of the system. MBS digital data received in the third mode of operation can be compiled and stored into large binary files within the host processing system for later retrieval by a user.

Abstract translation: 无线电数据接收系统在诸如个人计算机的主机处理系统内操作，并且接收利用以副载波频率调制的RDS或MBS数字数据编码的FM广播传输。 无线电数据接收系统以三种模式之一进行操作来解释RDS或MBS数字数据。 第一操作模式为无线电数据接收系统的用户提供了在监视器上显示的完整的FM立体声调谐器功能。 无线电数据接收系统接收并解码FM立体声调谐器模式下的RDS数据传输，并在监视器上显示RDS数据。 在第二和第三操作模式中，无线电数据接收系统接收并处理MBS数字数据。 在第二操作模式中，主机处理系统使用MBS数据来监视系统的用户接收到的页面。 在第三操作模式下接收到的MBS数字数据可以被编译并存储在主处理系统内的大二进制文件中，供用户稍后检索。

公开(公告)号：US5757782A

公开(公告)日：1998-05-26

申请号：US511168

申请日：1995-08-04

Applicant: Garold B. Gaskill

Inventor： Garold B. Gaskill

IPC: H04L1/18 ,  H04W88/02 ,  H04Q7/08

CPC classification number: H04W88/026 ,  H04H2201/13 ,  H04L1/18

Abstract: Pager data is transmitted at different subcarrier frequencies on different FM broadcast channels. The subcarrier frequency of the pager data is selected to avoid conflicts with signals transmitted from other systems. The pager receiver decodes data at any one of the multiple subcarrier frequencies according to the active subcarrier used on the currently tuned broadcast channel. In one embodiment, the subcarrier frequency of the pager data is contained in control packets of a time division multiplexed data frame. The receiver decodes the control packets to determine which broadcast frequencies and associated subcarrier frequencies contain potential pager signals. The receiver accordingly searches the identified broadcast frequency and automatically reconfigures a circuit demodulator to decode data packets at the identified subcarrier frequencies.

Abstract translation: 寻呼机数据以不同的FM广播频道上的不同子载波频率发送。 选择寻呼机数据的副载波频率以避免与从其他系统发送的信号的冲突。 寻呼机接收机根据在当前调谐的广播信道上使用的有效子载波来解码多个子载波频率中的任何一个的数据。 在一个实施例中，寻呼机数据的子载波频率被包含在时分复用数据帧的控制分组中。 接收机解码控制分组以确定哪个广播频率和相关联的副载波频率包含潜在的寻呼机信号。 接收机相应地搜索所识别的广播频率，并自动重新配置电路解调器以对所识别的副载波频率的数据分组进行解码。

公开(公告)号：US5752178A

公开(公告)日：1998-05-12

申请号：US730817

申请日：1996-10-17

Applicant: Yuji Yamamoto

Inventor： Yuji Yamamoto

IPC: H03J7/18 ,  H04B1/16 ,  H04H20/26 ,  H04H60/37 ,  H04B1/18

CPC classification number: H04B1/1646 ,  H04H60/37 ,  H04H20/26 ,  H04H2201/13

Abstract: A waveform identity discriminating circuit to discriminate the identity of two signal waveforms one of which is selected only for a very short period of time for discriminating the identity, wherein sample-and-hold circuits directly receive the selected input signals and sample each of the input signals in response to a sampling command and holds the sampled values, a discriminating circuit discriminates whether or not the waveforms of the input signals are identical by comparing the sampled values of the input signals held by the sample-and-hold circuits and a sampling timing detecting circuit monitors the frequency distribution pattern of the input signal and detects whether or not there are contained frequency components of a predetermined bandwidth by an amount at or above predetermined value, wherein the sampling timing of the sample and hold is controlled by the output of the sampling timing detecting circuit.

Abstract translation: 一种波形识别鉴别电路，用于鉴别两个信号波形的同一性，其中一个信号波形仅在非常短的时间段内被选择，以识别身份，其中采样和保持电路直接接收所选择的输入信号并对每个输入 响应于采样命令的信号并保持采样值，鉴别电路通过比较采样和保持电路保持的输入信号的采样值和采样定时来判别输入信号的波形是否相同 检测电路监视输入信号的频率分布模式，并检测是否存在预定带宽的频率分量是否在预定值以上的量，其中采样和保持的采样定时由 采样定时检测电路。

公开(公告)号：US5749048A

公开(公告)日：1998-05-05

申请号：US886665

申请日：1997-07-02

Applicant: Hiroshi Masuda

Inventor： Hiroshi Masuda

IPC: H03J7/28 ,  H03J1/00 ,  H03J3/08 ,  H04B1/16 ,  H04H60/27 ,  H04H60/44 ,  H04B1/18

CPC classification number: H03J1/0091 ,  H03J1/0066 ,  H04H60/44 ,  H03J3/08 ,  H04H2201/13 ,  H04H60/27

Abstract: A receiver for receiving a broadcast in which data indicating a broadcast station name has been multiplexed to a main signal includes: a receiving circuit constructed in a frequency synthesizer mode; a memory in which a group of frequency data for selecting the broadcast in the receiving circuit, and data on the broadcast station name is registered; a circuit for taking out the data from a signal received by the receiving circuit; a scanner for allowing the receiving circuit to scan the broadcasting zone for the broadcast; and a detector for detecting the received broadcast at the time of the scanning, when the detector has detected the received broadcast during the scanning, the group of the frequency data which has been registered before the start of the scanning, and the data on the broadcast station name is shifted to the data area in the memory, and one group of the frequency data indicating the frequency thus detected, and the data on the broadcast station name for the received broadcast is registered in the data area in the memory which has become empty by the shift.

Abstract translation: 一种用于接收广播的接收机，其中指示广播台名称的数据已被复用到主信号中，包括：以频率合成器模式构成的接收电路; 记录在接收电路中选择广播的一组频率数据和广播电台名称的数据的存储器; 用于从接收电路接收的信号中取出数据的电路; 用于允许接收电路扫描广播区域以用于广播的扫描仪; 以及检测器，用于在扫描时检测接收到的广播，当检测器在扫描期间检测到接收到的广播时，已经在扫描开始之前登记的频率数据组和广播上的数据 站名被移位到存储器中的数据区域，并且一组频率数据指示如此检测的频率，并且用于所接收的广播的广播站名称上的数据被登记在已经变为空的存储器中的数据区域中 通过转移。

公开(公告)号：US5732340A

公开(公告)日：1998-03-24

申请号：US714278

申请日：1996-09-17

Applicant: Yasuji Nishino

Inventor： Yasuji Nishino

IPC: H04B1/10 ,  H03G3/34 ,  H04B1/16

CPC classification number: H03G3/348 ,  H04H20/22 ,  H04H2201/13

Abstract: An FM receiver capable of instantaneous muting while receiving a broadcast includes a switch circuit provided in series in an audio signal line in the front end of a deemphasizing capacitor, a variable impedance element connected to the capacitor in parallel, and a waveform shaping circuit for smoothing the rise and fall of a muting signal, wherein the muting signal is fed to the switch circuit as a control signal to turn the switch circuit off during the muting signal period, and wherein an output signal of the waveform shaping circuit is fed to the variable impedance element to change the impedance of the variable impedance element correspondingly to the level of output signal of the waveform shaping circuit.

Abstract translation: 能够在接收广播时能够瞬时静音的FM接收机包括串联设置在去加重电容器的前端的音频信号线，并联连接到电容器的可变阻抗元件的开关电路和用于平滑的波形整形电路 静音信号的上升和下降，其中静噪信号作为控制信号馈送到开关电路，以在静噪信号周期期间关闭开关电路，并且其中波形整形电路的输出信号被馈送到变量 阻抗元件，用于根据波形整形电路的输出信号的电平改变可变阻抗元件的阻抗。