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EP-3926946-B1 - IMAGE CAPTURING MODULE AND ELECTRONIC TERMINAL

EP3926946B1EP 3926946 B1EP3926946 B1EP 3926946B1EP-3926946-B1

Inventors

  • HUANG, BO
  • ZHA, Peng
  • MAO, WEIHUA

Dates

Publication Date
20260506
Application Date
20200327

Claims (12)

  1. An image capture module (10, 20, 30), comprising a photographing module (11, 21, 31), a transmission module (12, 22, 32), and a main control module (13, 23, 33), wherein the transmission module and the photographing module are located in a first circuit module (B1), the main control module is located in a second circuit module (B2), and the first circuit module and the second circuit module are disposed independently of each other, wherein the photographing module comprises at least one camera (C), configured to collect an image and obtain an image signal, wherein the image signal comprises image data and an auxiliary signal; the transmission module comprises a first signal end (121, 221, 321) and a second signal end (122, 222, 322), the first signal end comprises a first quantity of connection channels (P1) electrically connected to the photographing module, and comprises a first channel group (221a, 321a) and a second channel group (221b, 321b), the first channel group is configured to enable, the transmission module to receive and the photographing module to transmit, the auxiliary signal and enable, the transmission module to transmit and the photographing module to receive, a control signal provided by the main control module used to control a working status of the photographing module, the second channel group is configured to enable the transmission module to receive the image data from the photographing module, the second signal end comprises a second quantity of connection channels (P2) electrically connected to the main control module, the first quantity is greater than the second quantity, and the image signal is transmitted from the first signal end to the second signal end, wherein the transmission module performs time division transmission for the image signal, or performs compression for the image data to reduce a data amount of the image signal to match the second quantity of said connection channels (P2); the transmission module further comprises a first transmission unit (223, 323) and a second transmission unit (225, 325), the first transmission unit is configured to process and transmit the auxiliary signal in the image signal and the control signal that is corresponding to the photographing module and that is provided by the main control module, and the first transmission unit is electrically connected to the photographing module by using the first channel group, and the second transmission unit is configured to process and transmit the image data in the image signal and is electrically connected to the photographing module by using the second channel group; and the main control module is configured to receive the image signal from the transmission module and process the image data in the image signal based on the auxiliary signal.
  2. The image capture module according to claim 1, wherein the main control module comprises a third signal end (131, 231, 331), a transceiver unit (132, 232, 332), and a data processing module (133, 233, 333), wherein the third signal end is electrically connected to the second signal end, and is configured to receive the image signal provided by the transmission module; the transceiver unit performs recovery and synchronization for the image data received in a time division manner, or performs decompression for the compressed image data; and the data processing module receives and processes the image data based on the auxiliary signal.
  3. The image capture module according to claim 2, wherein the data processing module further transmits the control signal to the photographing module by sequentially using the transceiver unit, the third signal end, and the transmission module, and the control signal is used to control the working status of the photographing module.
  4. The image capture module according to claim 1, wherein the first channel group comprises a third quantity of connection channels; the second channel group comprises a fifth quantity of connection channels; and a sum of the third quantity and the fifth quantity is the first quantity.
  5. The image capture module according to claim 4, wherein the second signal end comprises a third channel group (222a, 322a), the third channel group comprises a fourth quantity of connection channels, and the fourth quantity is less than the second quantity; and the third channel group is electrically connected to the first transmission unit and the main control module, and the first transmission unit transmits the auxiliary signal to the main control module by using the third channel group, and transmits the control signal received from the main control module to the photographing module.
  6. The image capture module according to claim 5, wherein the third signal end comprises a fifth channel group (231a, 331a), the fifth channel group comprises a fourth quantity of connection channels, and the fifth channel group and the third channel group are electrically connected in a flat cable or board-to-board connection manner, to transmit the auxiliary signal and the control signal.
  7. The image capture module according to claim 6, wherein the transmission module comprises a wireless transmitting unit (227), and the wireless transmitting unit is electrically connected to the second transmission unit, and is configured to transmit the image data in a wireless light wave manner or a radio wave manner.
  8. The image capture module according to claim 7, wherein the main control module comprises a wireless receiving unit (237) and a transceiver unit that are electrically connected, and the wireless transmitting unit is configured to: receive a radio broadcast or a radio wave transmitted by the wireless transmitting unit, and obtain the image data from the wireless light wave or the radio wave.
  9. The image capture module according to claim 8, wherein the transceiver unit comprises a first transceiver subunit (232a, 332a) and a second transceiver subunit (232b, 332b); the first transceiver subunit is electrically connected to the fifth channel group, and is configured to: perform recovery and synchronization for the image data received in a time division manner, or perform decompression for the compressed auxiliary signal; and the second transceiver subunit is electrically connected to the wireless receiving unit, and is configured to: perform recovery and synchronization for the image data received in the time division manner, or perform decompression for the compressed image data.
  10. The image capture module according to claim 6, wherein the second signal end further comprises a fourth channel group (322b), and the third signal end comprises a sixth channel group (331b); and the fourth signal channel group and the sixth channel group comprise a sixth quantity of connection channels, and are electrically connected in a flat cable or board-to-board connection manner; and the transceiver unit comprises a first transceiver subunit (232a, 332a) and a second transceiver subunit (232b, 332b), the first transceiver subunit is electrically connected to the fifth channel group, and is configured to: perform recovery and synchronization for the image data received in a time division manner, or perform decompression for the compressed auxiliary signal; and the second transceiver subunit is electrically connected to the sixth channel group, and is configured to: perform recovery and synchronization for the image data received in the time division manner, or perform decompression for the compressed image data.
  11. The image capture module according to claim 10, wherein the first transmission unit performs time division transmission for the auxiliary signal by using the third channel group, and the second transmission unit performs time division transmission for the image data; or the first transmission unit performs compression for the auxiliary signal to reduce a data amount of the image signal, and the second transmission unit performs compression for the image data to reduce the data amount of the image signal.
  12. An electronic terminal (100), comprising the image capture module (10, 20, 30) according to any one of claims 1 to 11.

Description

TECHNICAL FIELD Embodiments of this application relate to the field of image processing technologies, and in particular, to an image capture module and an electronic terminal. BACKGROUND As image quality requirements of users increase, an electronic terminal generally collects images by using a plurality of cameras at the same time or by using a high-definition camera, to achieve a better photographing effect. However, this causes an increase in connection cables between a camera module and an image processing module. Consequently, occupied board space of a circuit board is affected. US 2006/238826 A1 discloses an image transmitting apparatus including input terminals, first frame buffers corresponding to the input terminals, a write controlling portion, a read clock generating portion, a read controlling portion, an image compressing portion, and an image transmitting portion. US 2018/139373 A1 discloses an imaging apparatus wherein at least one imaging unit performs a capturing task to capture image data in accordance with control data. CN 103 974 040 A discloses a panoramic digital image sensor with a shared interface and an establishing method. CN 203 136 054 U discloses a utility model relating to a multipath standard definition or high definition adaptive network management type light end transmission system. CN 106 031 168 A and US 2015/245042 A1 disclose a solution for adaptively processing a digital image with reduced color resolution. SUMMARY To resolve the foregoing technical problem, the present invention provides an image capture module and an electronic terminal, to reduce impact on occupied board space of a circuit board. The invention is set out in the appended set of claims. An embodiment of the present invention provides an image capture module in accordance with appended claim 1. The quantity of connection channels that are of the transmission module and that are electrically connected to the main control module is less than the quantity of connection channels that are of the transmission module and that are electrically connected to the photographing module. Therefore, a quantity of connection cables between the transmission module and the main control module is accordingly reduced. In this way, complexity of cabling between the photographing module and the main control module can be reduced, and more cabling space can be provided. In an optional embodiment, the transmission module and the photographing module are located in a first circuit module, the main control module is located in a second circuit module, and the first circuit module and the second circuit module are disposed independently of each other. In this way, a position at which the main control module is disposed can be independent of the photographing module, and the main control module and the photographing module do not need to be disposed on a same circuit board, so that a volume of the image capture module is effectively reduced. The data amount reduction processing performed by the transmission module includes time division transmission performed for the image signal or compression performed for the image data. Because the transmission module performs data aggregation compression or time division transmission for the image signal to reduce a data amount, the transmission module can transmit the image signal by using fewer connection channels. The main control module includes a third signal end, a transceiver unit, and a data processing module. The third signal end is electrically connected to the second signal end, and is configured to receive the image signal provided by the transmission module. The transceiver unit performs recovery and synchronization for the image data received in a time division manner, or performs decompression for the compressed image data. The data processing module receives and processes the image data based on the auxiliary signal. The receiving and processing the image data includes that the data processing module executes, based on a strobe signal, a field signal, and a clock signal in the auxiliary signal, data required for recognizing one frame of picture in the image data, and then performs processing such as data buffering based on a display resolution. The image signal processed by the data processing module is provided for another function module for use, for example, provided for a display module to perform image display, or provided for a storage module to perform image storage. The data processing module outputs the control signal based on a user instruction received from the outside, or directly based on the processed image data, and transmits the control signal to the photographing module by using the transmission module. In this embodiment of the present invention, the data processing module further transmits the control signal to the photographing module by sequentially using the transceiver unit, the third signal end, and the transmission module, and the control signal is use