Data signal detection apparatus, and mobile industry processor interface radio frequency front-end slave device and system

A mobile industry processor interface radio frequency front-end (RFFE) slave device, comprising:

• a data signal detection device, a first device input terminal, a second device input terminal and a data signal processing unit;
• wherein the data signal detection device comprises:
• two acquisition circuits having a same circuit structure, and a selection output circuit, wherein the two acquisition circuits are a first acquisition circuit and a second acquisition circuit respectively;
• wherein, a first input terminal of the first acquisition circuit is connected to a second input terminal of the second acquisition circuit, and a second input terminal of the first acquisition circuit is connected to a first input terminal of the second acquisition circuit;
• output terminals of the two acquisition circuits are respectively connected to two input terminals of the selection output circuit;
• wherein the first acquisition circuit is configured to:
• use a signal received by the first input terminal of the first acquisition circuit as a clock signal to acquire a signal received by the second input terminal of the first acquisition circuit, verify whether an acquisition signal acquired by the first acquisition circuit meets a characteristic of a data signal, output the acquisition signal acquired by the first acquisition circuit to the selection output circuit based on a verification result that the acquisition signal acquired by the first acquisition circuit meets the characteristic of the data signal, and output a set invalid signal to the selection output circuit based on a verification result that the acquisition signal acquired by the first acquisition circuit does not meet the characteristic of the data signal;
• wherein the second acquisition circuit is configured to:
• use a signal received by the first input terminal of the second acquisition circuit as a clock signal to acquire a signal received by the second input terminal of the second acquisition circuit, verify whether an acquisition signal acquired by the second acquisition circuit meets the characteristic of the data signal, output the acquisition signal acquired by the second acquisition circuit to the selection output circuit based on a verification result that the acquisition signal acquired by the second acquisition circuit meets the characteristic of the data signal, and output the invalid signal to the selection output circuit based on a verification result that the acquisition signal acquired by the second acquisition circuit does not meet the characteristic of the data signal;
• and wherein the selection output circuit is configured to select, from the received acquisition signal and the received invalid signal, the received acquisition signal to output as the data signal;
• wherein the first device input terminal is connected to a first input terminal of a target acquisition circuit in the data signal detection device, and the target acquisition circuit is one of the two acquisition circuits in the data signal detection device;
• the second device input terminal is connected to a second input terminal of the target acquisition circuit;
• the data signal processing unit is connected to the selection output circuit in the data signal detection device;
• one of the first device input terminal and the second device input terminal is configured to receive a clock signal which is used to be input into the target acquisition circuit, and another one of the first device input terminal and the second device input terminal is configured to receive a data signal which is used to be input into the target acquisition circuit;
• the data signal detection device is configured to select a correct data signal among signals input from the first device input terminal and the second device input terminal and send the correct data signal to the data signal processing unit;
• and
• the data signal processing unit is configured to process the received data signal.

A mobile industry processor interface radio frequency front-end system, comprising:

• a mobile industry processor interface radio frequency front-end master device and two mobile industry processor interface radio frequency front-end slave devices;
• wherein the two mobile industry processor interface radio frequency front-end slave devices are the same, and the two slave devices are respectively a first mobile industry processor interface radio frequency front-end slave device and a second mobile industry processor interface radio frequency front-end slave device;
• wherein each of the two mobile industry processor interface radio frequency front-end slave devices comprises a data signal detection device, a first device input terminal, a second device input terminal and a data signal processing unit;
• wherein the data signal detection device comprises:
• two acquisition circuits having a same circuit structure, and a selection output circuit, wherein the two acquisition circuits are a first acquisition circuit and a second acquisition circuit respectively;
• wherein, a first input terminal of the first acquisition circuit is connected to a second input terminal of the second acquisition circuit, and a second input terminal of the first acquisition circuit is connected to a first input terminal of the second acquisition circuit;
• output terminals of the two acquisition circuits are respectively connected to two input terminals of the selection output circuit;
• wherein the first acquisition circuit is configured to:
• use a signal received by the first input terminal of the first acquisition circuit as a clock signal to acquire a signal received by the second input terminal of the first acquisition circuit, verify whether an acquisition signal acquired by the first acquisition circuit meets a characteristic of a data signal, output the acquisition signal acquired by the first acquisition circuit to the selection output circuit based on a verification result that the acquisition signal acquired by the first acquisition circuit meets the characteristic of the data signal, and output a set invalid signal to the selection output circuit based on a verification result that the acquisition signal acquired by the first acquisition circuit does not meet the characteristic of the data signal;
• wherein the second acquisition circuit is configured to:
• use a signal received by the first input terminal of the second acquisition circuit as a clock signal to acquire a signal received by the second input terminal of the second acquisition circuit, verify whether an acquisition signal acquired by the second acquisition circuit meets the characteristic of the data signal, output the acquisition signal acquired by the second acquisition circuit to the selection output circuit based on a verification result that the acquisition signal acquired by the second acquisition circuit meets the characteristic of the data signal, and output the invalid signal to the selection output circuit based on a verification result that the acquisition signal acquired by the second acquisition circuit does not meet the characteristic of the data signal;
• and wherein the selection output circuit is configured to select, from the received acquisition signal and the received invalid signal, the received acquisition signal to output as the data signal;
• wherein the first device input terminal is connected to a first input terminal of a target acquisition circuit in the data signal detection device, and the target acquisition circuit is one of the two acquisition circuits in the data signal detection device;
• the second device input terminal is connected to a second input terminal of the target acquisition circuit;
• the data signal processing unit is connected to the selection output circuit in the data signal detection device;
• one of the first device input terminal and the second device input terminal is configured to receive a clock signal which is used to be input into the target acquisition circuit, and another one of the first device input terminal and the second device input terminal is configured to receive a data signal which is used to be input into the target acquisition circuit;
• the data signal detection device is configured to select a correct data signal among signals input from the first device input terminal and the second device input terminal and send the correct data signal to the data signal processing unit;
• and
• the data signal processing unit is configured to process the received data signal;
• wherein a clock terminal of the mobile industry processor interface radio frequency front-end master device is separately connected to the first device input terminal of the first mobile industry processor interface radio frequency front-end slave device and the second device input terminal of the second mobile industry processor interface radio frequency front-end slave device;
• a data terminal of the mobile industry processor interface radio frequency front-end master device is separately connected to the second device input terminal of the first mobile industry processor interface radio frequency front-end slave device and the first device input terminal of the second mobile industry processor interface radio frequency front-end slave device.