Vehicle-mounted walkie-talkie with dual-segment duplex inter-segment transfer function
A vehicle-mounted walkie-talkie, span-span technology, applied in electrical components, transmission systems, two-way line system stations, etc., can solve the problems of duplication of resources, expensive transfer costs, and receiver audio signal transfer, etc., to achieve extension and communication distance. Effect
Active Publication Date: 2015-08-05
泉州欧讯电子有限公司
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Problems solved by technology
[0007] In addition to the above-mentioned simplex same-frequency or simplex different-frequency communication methods, the current vehicle-mounted walkie-talkie cannot relay the audio signal received by the receiver itself. The transfer of vehicle-mounted walkie-talkies results in expensive transfer costs and duplication of resources
Method used
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[0024] Such as Figure 1 to Figure 3 As shown, a vehicle-mounted walkie-talkie with dual-segment duplex span transfer function is mainly composed of receiving unit 1, receiving unit 2 11, transmitting unit 1 4, transmitting unit 2 7, mixing unit 1 3, and mixing unit 2 8 , The audio signal switching unit 10, the antenna unit 5, the receiver unit 1, the receiver unit 9 and the microphone 6.
[0025] The receiving unit 1 and the transmitting unit 4 are in the same frequency band, the receiving unit 11 and the transmitting unit 2 7 are in the same frequency band; and the receiving unit 1 and the transmitting unit 7 are in different frequency bands, and the receiving unit 11 is The transmitting unit has 4 different frequency bands.
[0026] The above-mentioned receiving unit 1 is electrically connected to the audio signal switching unit 10 through a wire, the audio signal switching unit 10 is electrically connected to the mixing unit 2 8 and the receiving unit 2 9 through the wire, and...
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A Vehicle-mounted intercom having a dual-band duplex cross-band transfer function is mainly composed of a receiving unit One, a receiving unit Two, an emitting unit One, an emitting unit Two, a sound mixing unit One, a sound mixing unit Two, an audio signal switching unit, antenna units, a called unit One, a called unit Two and a telephone transmitter. The receiving unit One and the emitting unit One are on different frequencies of the same frequency band. The frequency band where the receiving unit One and the emitting unit One are located and the frequency band where the receiving unit Two and the emitting unit Two are located are two different frequency bands. The vehicle-mounted intercom can realize conventional intercom communications, and at the same time can transfer the carrier signals received by the vehicle-mounted intercom through another frequency band in real time so as to effectively realize extension of communication distance; and the vehicle-mounted intercom has two receivers in two different frequency bands and two emitters in two different frequency bands, so that effective carrier signals received by either receiver can be transmitted through another emitter on the different frequency band.
Description
technical field [0001] The invention relates to a vehicle-mounted walkie-talkie, in particular to a vehicle-mounted walkie-talkie with a dual-segment, duplex, and cross-segment transfer function. Background technique [0002] Walkie-talkies (commonly known as walkie-talkies, walkie-talkies) are divided into two types: hand-held and vehicle-mounted. The handheld type is flexible and light, but the power is small and the communication distance is short; the vehicle-mounted walkie-talkie has high power and long communication distance. A major communication tool in communication. [0003] At present, the vehicle-mounted walkie-talkie and the handheld walkie-talkie can only communicate with one frequency or different frequencies. Simplex co-frequency communication means that information can only be transmitted in one direction at the same time. The receiver and transmitter of the walkie-talkie work alternately and cannot work at the same time. A simplex receiver has the same r...
Claims
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IPC IPC(8): H04B1/40H04Q5/24H04B1/3822H04B1/3827
Inventor 陈泉庆
Owner 泉州欧讯电子有限公司