公开(公告)号：US4593284A

公开(公告)日：1986-06-03

申请号：US589441

申请日：1984-03-14

申请人： Mark J. Clifford ,  Robert H. Hock ,  Douglas M. Jagunich ,  Paul J. Robinson

发明人： Mark J. Clifford ,  Robert H. Hock ,  Douglas M. Jagunich ,  Paul J. Robinson

IPC分类号： A61B5/00 ,  G08C15/00 ,  G08C19/02

CPC分类号： A61B5/0006 ,  A61B5/0022 ,  G08C15/00 ,  Y10S128/904

摘要： Real time analog and digital information are simultaneously transmitted from a transmitter circuit. In the disclosed embodiment, the analog signals are obtained from ECG apparatus and the digital signals are derived by a process or from analysis of the ECG signals. The system is implemented by summing the output signals from the FM oscillator and the FSK oscillator in an amplitude summing amplifier and transmitting the result in combined waveform, preferably over a phone line, although radio transmission may alternately be used as well as other types of transmission of the resulting signal.In the present invention, the analog signal is employed to frequency modulate a frequency modulated oscillator, and the digital information signal is used to obtain frequency shift keying of a FSK oscillator. In the disclosed embodiment, the frequency modulated oscillator and the FSK oscillator have frequencies that are within the band pass of the telephone line and, of course, have sufficient separation so that the resulting output signal may be filtered and decoded to obtain the separate analog and digital components. After the FM modulated analog information signal and the digital controlled FSK signals are obtained, they are coupled to an amplitude summing amplifier which provides a single amplitude summation of the two signals as applied to the modem and thus over the phone line. In this manner, the simultaneous transmission of both analog and digital information is provided in efficient but effective system.

摘要翻译： 实时模拟和数字信息从发射机电路同时传输。 在所公开的实施例中，模拟信号从ECG装置获得，并且数字信号通过过程或从ECG信号的分析导出。 该系统通过在振幅求和放大器中对来自FM振荡器和FSK振荡器的输出信号求和来实现，优选地通过电话线路将结果发送到组合波形，尽管可以替代地使用无线电传输以及其他类型的传输 的结果信号。 在本发明中，采用模拟信号对调频振荡器进行频率调制，数字信息信号用于获得FSK振荡器的频移键控。 在所公开的实施例中，调频振荡器和FSK振荡器具有在电话线的频带内的频率，当然，具有足够的分离，使得所得到的输出信号可以被滤波和解码以获得单独的模拟和 数字组件。 在获得FM调制的模拟信息信号和数字受控FSK信号之后，它们被耦合到幅度求和放大器，该幅度求和放大器提供应用于调制解调器并因此通过电话线路的两个信号的单个幅度求和。 以这种方式，在有效但有效的系统中提供模拟和数字信息的同时传输。