32results about How to "Play clearly" patented technology

The invention provides a vehicle frequency modulation FM emission system and electronic equipment. The system comprises a signal modulation unit, a power amplifier unit, a boosting unit, and a vertical polarized antenna, the vertical polarized antenna comprises a feeding spring sheet, an antenna body, and a radiator, the feeding spring sheet is coupled to the power amplifier unit and electrically connected to a side surface at one end of the antenna body, the radiation unit is electrically connected to the other end of the antenna body, the radiation unit and the antenna body are arranged at an included angle in the same plane, and the included angle is greater than 90 degrees. According to the vehicle frequency modulation FM emission system, the signal power intensity can satisfy clear playing of an FM receiver in a vehicle, noises and current sounds are prevented, interferences of an FM radio station outside the vehicle can be well hidden, the stability of an FM transmit-receive unit in the vehicle is maintained, the power is limited in the vehicle, and normal operation of other receivers outside the vehicle is not disturbed. The vertical polarized FM emission antenna is advantaged by small size, light weight, convenient built-in, high radiation efficiency, and good directivity.

The invention relates to a method for synchronously storing and playing back fetal heart sound, heartbeat waveform and heart rate values. The storing method comprises the following steps of: acquiring fetal heart signals; dividing the signals into three paths, performing AD sampling on the first path to obtain heart sound signals, connecting the second path and an amplifier and then connecting a power amplification circuit, connecting the third path and an amplifying circuit and then dividing the third path into two paths, performing AD sampling on the first path of the third path to obtain heartbeat wave and a bar chart, and capturing, calculating and filtering the other path of the third path by a singlechip to obtain heart rate values after the other path of the third path is shaped bya comparator; and packing and storing the heart sound digital signals, the heartbeat waveform and the heart rate values as a fetal heart sound file. The playback method comprises the following steps of: reading the fetal heart sound file, extracting the heart rate value and heartbeat waveform data after unpacking, drawing the heartbeat waveform and the bar chart according to the waveform data, extracting the heart sound data at the same time and playing back the heart sound data after DA processing. The method can realize synchronous display, storage and playback of the fetal heart sound, thefetal heart rate, the heartbeat waveform and the bar chart, has more intuitive and clearer display, and can control the play of antenatal training music.

The application proposes an automobile headlight control system, method, device, equipment and storage medium. The automobile headlight control system includes a video signal receiving device, a gateway, an information domain control module and a digital light processing DLP device; the video signal receiving device is used to obtain the first video signal; the gateway is connected to the video signal receiving device and the information domain control module Between, the gateway is used to transmit the first video signal to the information domain control module; the information domain control module is used to route the first video signal to the DLP device; the DLP device is used to convert the first video signal into a corresponding front photo Light control signal, use the headlight control signal to control the corresponding video image projected by the headlight of the car. By implementing the embodiments of the present application, it is possible to provide drivers and passengers with smooth and clear video signal playback, and to meet the needs of drivers and passengers in terms of information and entertainment.

The invention provides a method for synchronously displaying multiple screens, comprising: A. the source screen plays a video file, and acquires screen image data and sends it to the target screen for synchronous playback; B. the source screen sends the address information of the played video file and the current playback progress information of the video file is sent to the target screen in real time; C, the target screen reads the video file data according to the address information, and plays from the position corresponding to the received current playback progress information . A multi-screen synchronous display system is also provided correspondingly. By downloading the video file according to the source of the video file while transmitting the screen image for playback, the secondary synchronization of multi-screen sharing can be realized, and the screen capture and the playback of the video file itself can be realized. Seamless docking, so as to realize video synchronization, clear and smooth playback from small screen devices to large screen devices.

The invention discloses a multifunctional studio which comprises a studio base wall, a stage base layer, an electric chair base layer, packway lower sound-absorption ceiling layers and an air conditioner air duct layer. The air conditioner air duct layer is installed at the top of the studio base wall; the bottom of the air conditioner air duct layer is connected with a facility maintenance layer; and a camera bellows is installed at the bottom of the facility maintenance layer. The multifunctional studio provided by the invention is simple in structure and convenient to use; the whole studio is changed into a music hall, a conference hall and a studio hall, the use scope of the studio is greatly expanded through the three-in-one design, and the multifunctional studio is more convenient to use; meanwhile, a reverberation overturning plate and a ceiling capable of overturning are further cooperatively used, when the ceiling is opened, the reverberation time is shortened, and the sound absorption amount is increased; and when the multifunctional studio is used as the music hall, the reverberation overturning plate is designed on the wall surface, the reverberation overturning plate can serve as a sound absorption plate for the studio after being overturned, sound absorption of the studio is facilitated, and the studio can be used conveniently.