A circuit of medical communication equipment and medical communication equipment
A technology of communication equipment and gating circuit, which is applied in the field of medical communication and can solve problems such as loud noise and echo
Active Publication Date: 2021-05-04
山东亚华电子股份有限公司
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Problems solved by technology
However, due to the special functions of the existing digital medical communication equipment, such as the emergency button and the display of the patient's condition, the medical communication equipment has defects such as echo and loud noise when the local microphone and the handle microphone are switched.
Method used
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Embodiment Construction
[0048]In order to explain the overall concept of the present application, the following description will be described in detail below with reference to the drawings.
[0049]The present application example discloses a circuit of a medical communication device, such asfigure 1 As shown, including the signal gate circuit 101, the codec circuit 102, the unused tone circuit 103, and the power amplifier circuit 104.
[0050]The process of calling the echo when the call is echoed by A and B. The process of echo generation and the principle of eliminating echo. Where the call devices used are defined as the call devices used by the device A and B definition as the device B. When the audio signal is transmitted to b, the audio signal transmitted by the device B played, at which time the microphone on the device B will acquire the played audio signal while also acquiring the audio signal sent to A, thereby obtaining A mixed audio signal of the audio signal transmitted by the played audio signal an...
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The application discloses a circuit of medical communication equipment, including: a signal gating circuit, a codec circuit and an echo canceling circuit; the signal gating circuit is respectively connected to the decoding output end of the codec circuit and the input end of the echo canceling circuit; The input end is connected to the decoding output end of the codec circuit; the output end of the echo cancellation circuit is connected to the encoding input end of the codec circuit; the signal gating circuit is used to determine the audio signal transmission of the local microphone according to the received gating control signal The line is also the audio signal transmission line of the handle microphone; the signal gating circuit transmits the audio signal obtained by the local microphone or the handle microphone to the echo canceling circuit through the audio signal transmission line of the local microphone or the handle microphone, and decodes the output The audio signal sent by the terminal is transmitted to the power amplifier device corresponding to the local microphone or the handle microphone. The application implements switching of communication lines of medical communication equipment, improves communication quality, and transmits audio signals using the network as a medium.
Description
Technical field[0001]The present application relates to the field of medical communication, and in particular, there is a circuit and a medical communication device for medical communication equipment.Background technique[0002]At present, many hospitals are equipped with medical communication equipment. Medical communication equipment has medical communication equipment used by medical staff, and there is also a patient communication device for patients.[0003]Whether it is a medical communication device or a patient communication device, most of the existing medical communication equipment is an analog communication device. However, due to its own characteristics, analog communication devices typically have weaknesses such as equipment and weaknesses. In order to solve this problem, some companies began designing and producing digital medical communication equipment. The existing digital medical communication equipment is due to the special functions of the medical communication equ...
Claims
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IPC IPC(8): G16H80/00H04M1/20
Inventor 宋可鑫罗小贵白政锋任宪勇
Owner 山东亚华电子股份有限公司