WO2017206658A1

WO2017206658A1 - Mobile terminal and method for exposure thereof, and computer storage medium

Info

Publication number: WO2017206658A1
Application number: PCT/CN2017/082956
Authority: WO
Inventors: 谢书勋
Original assignee: 努比亚技术有限公司
Priority date: 2016-05-30
Filing date: 2017-05-03
Publication date: 2017-12-07
Also published as: CN105959589A

Abstract

Disclosed in the embodiments of the present invention are a mobile terminal and a method for exposure thereof, and a computer storage medium. The mobile terminal comprises a CCD image sensing unit, the light incident side of the CCD image sensing unit being provided with an electronic black card, the electronic black card being transparent in a powered-off state and opaque in a powered-on state. The mobile terminal further comprises: a control unit configured to control the performing of global exposure when the CCD image sensing unit collects image data, and control the electronic black card to be powered on when the duration of the exposure reaches a preset threshold value; and a data reading unit configured to scan exposed data in a progressive/interlaced manner when the control unit controls the electronic black card to power on. The technical solutions of the embodiments of the present invention can overcome the shortcomings of mechanical shutters in aspects of usage life and turn-off delay.

Description

Mobile terminal and exposure method thereof, computer storage medium

Cross-reference to related applications

The present application is based on a Chinese patent application filed on Jan. 30, the entire disclosure of which is hereby incorporated by reference.

Technical field

The present invention relates to the field of photographing technology, and in particular, to a mobile terminal, an exposure method thereof, and a computer storage medium.

Background technique

Currently used in many CCD (Charge-coupled Device) image sensors of digital cameras and mobile phones, an ITCCD (Interline Transfer Charge-coupled Device) image sensor is widely used. There are two kinds of ITCCDs, one is progressive scan ITCCD (Progressive Scan ITCCD), and the other is interlaced scanning ITCCD (Interlace Scan ITCCD). Currently used on SLR cameras and ordinary cameras are basically progressive scan ITCCD; ITCCD for this interlaced scan must be matched with a mechanical shutter for proper exposure. The exposure process of the interlaced ITCCD can be as shown in Figures 1a to 1e. In order to avoid the occurrence of streaks during the transfer of data parity lines after the global exposure of the ITCCD, it is necessary to use a mechanical shutter to block the light, so as to avoid the occurrence of uneven horizontal line exposure and photo streaks. After the exposure is over, the accumulated charge in all odd rows of the photosensitive region will be transferred to the vertical charge register (VCCD) of the blackout region, then each row will be transferred to the horizontal charge register (HCCD) in order, and then each pixel will be transferred. The charge is amplified and output after analog-to-digital conversion. When all the odd-numbered rows of charge are processed, all the even-numbered rows of charge in the photosensitive region are The same processing is performed, and the charges of all the even rows are processed and outputted. In the above process, the mechanical shutter must be kept closed, the light is blocked, and the CCD is kept out of light, thereby ensuring all the lines of the entire CCD ( Both the odd and even rows are exposed to the same amount to avoid uneven exposure. Under normal circumstances, due to the mechanical structure, the mechanical shutter wears during opening and closing. Due to this wear, the mechanical shutter has a limitation on the service life. Usually the mechanical shutter on a SLR camera usually has a service life of 15 to 200,000 times. In addition, since the mechanical shutter controls the closing of the mechanical blade by the solenoid valve, it takes a period of time from power-on to the closing of the solenoid valve suction blade. Therefore, when processing the mechanical shutter closing action, it is necessary to calculate the advance amount for operation, as shown in FIG. The mechanical shutter takes a period of time from power-on (T1 time) to full-off (T2 time). After the CCD reaches the preset exposure time (T0 to T2), the mechanical shutter must start reading data before the odd line starts. Fully off (before T2), that is, when reading data in odd rows, it is necessary to ensure that the CCD is not in the light state, otherwise the exposure time of the even rows of the CCD cannot be guaranteed to be uniform.

Summary of the invention

The embodiments of the present invention are intended to provide a mobile terminal, an exposure method thereof, and a computer storage medium, to solve the problem of uneven exposure and short service life of the mobile terminal using the CCD in the prior art due to the mechanical shutter.

To achieve the above objective, the technical solution of the embodiment of the present invention is implemented as follows:

An embodiment of the present invention provides a mobile terminal, where the mobile terminal includes a CCD image sensing unit; an optical black card is disposed on a light incident side of the CCD image sensing unit; and the electronic black card is in a power down state. a transparent state, wherein the light enters the CCD image sensing unit through the electronic black card; the electronic black card is in a non-transmissive state in a power-on state to block light entering the CCD image sensing unit;

The mobile terminal further includes: a control unit and a data reading unit; wherein

The control unit is configured to control when the CCD image sensing unit collects image data Performing global exposure; and controlling the electronic black card to be powered when the exposure duration reaches a preset threshold;

The data reading unit is configured to scan the exposure data progressively/interlaced when the control unit controls the electronic black card to be powered on.

In an embodiment, the control unit is further configured to control the electronic black card to be powered down after the data reading unit completes the progressive/interlaced scanning exposure data.

In an embodiment, the data reading unit is configured to scan and transfer the exposure data of the odd lines when the control unit controls the electronic black card to be powered on, and expose the exposure data of the odd lines after the transfer. Performing amplification and analog-to-digital conversion output; scanning and transferring the exposure data of the even-numbered lines, and amplifying and modulating the exposure data of the even-numbered lines after the transfer.

In an embodiment, the control unit is configured to control the electronic black card to be powered down after the data reading unit converts the exposure data of the odd rows and the exposure data of the even rows.

In an embodiment, the control unit is configured to control the electronic black card to be powered on when the CCD image sensing unit starts exposure and the exposure time reaches a preset threshold.

In an embodiment, the mobile terminal further includes an acquiring unit configured to acquire a state of the electronic black card when the image capturing instruction is detected;

The control unit is further configured to control the electronic black card to be powered down for global exposure when the state of the electronic black card is a power-on state.

In an embodiment, the control unit is further configured to control the electronic black card to be powered when the shutter close command is detected; or to control the electronic black card to be powered down when the shutter open command is detected.

In an embodiment, the currents loaded on the electronic black card are different in light transmittance corresponding to the electronic black card.

In an embodiment, the electronic black card is disposed on a surface of the CCD image sensing unit on the light incident side, or is fixed to the light incident side of the CCD image sensing unit, or is disposed on the CCD image transmission. The interior of the sense unit.

An embodiment of the present invention further provides an exposure method, which is applied to a mobile terminal; the mobile terminal includes a CCD image sensing unit; and an electronic black card is disposed on a light incident side of the CCD image sensing unit; The card is in a transparent state in a power-off state, so that the light enters the CCD image sensing unit through the electronic black card; the electronic black card is in a non-transmissive state in a power-on state, to block the entering the CCD Light of the image sensing unit; the method comprising:

When the CCD image sensing unit collects image data, the control performs global exposure;

Detecting the exposure time;

When the exposure duration reaches a preset threshold, the electronic black card is controlled to be powered up, and the exposure data is progressive/interlaced.

In an embodiment, the method further comprises: controlling the electronic black card to be powered down after the progressive/interlaced scan exposure data is completed.

In an embodiment, the controlling the electronic black card to be powered on, and the progressive/interlaced scanning exposure data, comprises: scanning and transferring the exposure data of the odd lines when the electronic black card is powered on, after the transfer The exposure data of the odd-numbered rows is amplified and output after analog-to-digital conversion; the exposure data of the even-numbered rows is scanned and transferred, and the exposure data of the even-numbered rows after the transfer is amplified and analog-digital converted and output.

In an embodiment, after the exposure data of the odd rows and the exposure data of the even rows are converted and output, the method further includes: controlling the electronic black card to be powered down.

In an embodiment, the controlling the powering of the electronic black card comprises: detecting an exposure time of the CCD image sensing unit when the CCD image sensing unit starts to expose;

When the exposure time reaches a preset threshold, the electronic black card is controlled to be powered on.

In an embodiment, the method further includes: acquiring an electronic black card when the image capturing instruction is detected;

When the state of the electronic black card is the power-on state, the electronic black card is controlled to be powered down for global exposure.

In an embodiment, the method further includes: controlling the electronic black card to be powered when the shutter close command is detected; or controlling the electronic black card to be powered down when the shutter open command is detected.

An embodiment of the present invention further provides a mobile terminal, where the mobile terminal includes: a CCD image sensor, an electronic black card, and a processor; and an electronic black card is disposed on a light incident side of the CCD image sensor; the electronic black card is dropped a state of being transparent in an electrical state, such that light passes through the electronic black card into the CCD image sensor; the electronic black card is in a non-transmissive state in a powered state to block access to the CCD image sensor;

The CCD image sensor is configured to collect image data;

The processor is configured to: when the CCD image sensor acquires image data, control to perform global exposure; detect an exposure duration; when the exposure duration reaches a preset threshold, control the electronic black card to be powered on, and progressively / Interlaced exposure data.

In an embodiment, the processor is further configured to control the electronic black card to be powered down after the progressive/interlaced scan exposure data is completed.

The embodiment of the invention further provides a computer storage medium, wherein the computer storage medium stores computer executable instructions, and the computer executable instructions are used to execute the exposure method according to the embodiment of the invention.

The mobile terminal provided by the embodiment of the present invention, the exposure method thereof, and the computer storage medium, the mobile terminal includes a CCD image sensing unit; the light incident side of the CCD image sensing unit is provided with an electronic black card; the electronic black card a transparent state in a power-down state to allow light to enter the CCD image sensing unit through the electronic black card; the electronic black card is in a non-transmissive state in a power-on state to block the entering the CCD image The light of the sensing unit; the mobile terminal further includes: a control unit and a data reading unit; wherein the control unit is configured to control the global exposure when the image data is collected by the CCD image sensing unit; and to expose Duration reaches the preset threshold And controlling the electronic black card to be powered on; the data reading unit is configured to scan the exposure data progressively/interlaced when the control unit controls the electronic black card to be powered on. Thus, according to the technical solution of the embodiment of the present invention, the light entering the CCD image sensing unit is blocked by the power-on of the electronic black card, so that the data of the pixel after the exposure is read, because the electronic black card power-on process is very fast. The duration is negligible, so the electronic black card of the embodiment of the present invention can overcome the shortcomings of the mechanical shutter in terms of service life and the closing delay, and completely replaces the conventional mechanical shutter, and greatly prolongs the service life with respect to the mechanical shutter.

DRAWINGS

1a to 1e are schematic diagrams showing an exposure process of an ITCCD in the prior art;

2 is a schematic diagram of a control process of a global exposure of a mechanical shutter in the prior art;

3 is a schematic structural diagram of hardware of a mobile terminal implementing various embodiments of the present invention;

4 is a schematic diagram of a wireless communication system of the mobile terminal shown in FIG. 3;

Figure 5 is a block diagram showing the electrical structure of the camera of Figure 3;

FIG. 6 is a schematic structural diagram of a structure of a mobile terminal according to an embodiment of the present invention;

FIG. 7 is a schematic diagram of a control process of a mobile terminal according to an embodiment of the present invention; FIG.

FIG. 8 is a schematic diagram of another composition structure of a mobile terminal according to an embodiment of the present invention; FIG.

FIG. 9 is a schematic flow chart of an exposure method according to an embodiment of the present invention; FIG.

FIG. 10 is another schematic flowchart of an exposure method according to an embodiment of the present invention; FIG.

FIG. 11 is a schematic diagram of a hardware entity of a mobile terminal according to an embodiment of the present invention; FIG.

The implementation, functional features, and advantages of the present invention will be further described in conjunction with the embodiments.

detailed description

It is understood that the specific embodiments described herein are merely illustrative of the invention and are not intended to limit the invention.

A mobile terminal embodying various embodiments of the present invention will now be described with reference to the accompanying drawings. In the following description, the use of suffixes such as "module", "component" or "unit" for indicating an element is merely an explanation for facilitating the present invention, and does not have a specific meaning per se. Therefore, "module" and "component" can be used in combination.

The mobile terminal can be implemented in various forms. For example, the terminal described in the present invention may include, for example, a mobile phone, a smart phone, a notebook computer, a digital broadcast receiver, a PDA (Personal Digital Assistant), a PAD (Tablet), a PMP (Portable Multimedia Player), a navigation device, etc. Mobile terminals and fixed terminals such as digital TVs, desktop computers, and the like. In the following, it is assumed that the terminal is a mobile terminal. However, those skilled in the art will appreciate that configurations in accordance with embodiments of the present invention can be applied to fixed type terminals in addition to components that are specifically for mobile purposes.

FIG. 3 is a schematic diagram showing the hardware structure of a mobile terminal embodying various embodiments of the present invention.

The mobile terminal 100 may include a wireless communication unit 110, an A/V (Audio/Video) input unit 120, a user input unit 130, an electronic black card 140, an output unit 150, a memory 160, an interface unit 170, a controller 180, and a power supply unit 190. and many more. Figure 3 illustrates a mobile terminal having various components, but it should be understood that not all illustrated components are required to be implemented. More or fewer components can be implemented instead. The elements of the mobile terminal will be described in detail below.

Wireless communication unit 110 typically includes one or more components that permit radio communication between mobile terminal 100 and a wireless communication device or network. For example, the wireless communication unit may include at least one of a broadcast receiving module 111 and a mobile communication module 112.

The broadcast receiving module 111 receives a broadcast signal and/or broadcast associated information from an external broadcast management server via a broadcast channel. The broadcast channel can include a satellite channel and/or a terrestrial channel. The broadcast management server may be a server that generates and transmits a broadcast signal and/or broadcast associated information or a server that receives a previously generated broadcast signal and/or broadcast associated information and transmits it to the terminal. The broadcast signal may include a TV broadcast signal, a radio broadcast signal, a data broadcast signal, and the like. And, The broadcast signal may further include a broadcast signal combined with a TV or radio broadcast signal. The broadcast associated information may also be provided via a mobile communication network, and in this case, the broadcast associated information may be received by the mobile communication module 112. The broadcast signal may exist in various forms, for example, it may exist in the form of an EPG (Electronic Program Guide) of DMB (Digital Multimedia Broadcasting), an ESG (Electronic Service Guide) of DVB-H (Digital Video Broadcasting Handheld), or the like. . The broadcast receiving module 111 can receive a signal broadcast by using various types of broadcast apparatuses. In particular, the broadcast receiving module 111 can use forward link media (MediaFLO) by using, for example, DMB-T (Multimedia Broadcast-Ground), DMB-S (Digital Multimedia Broadcast-Satellite), DVB-H (Digital Video Broadcast-Handheld) A digital broadcasting device such as a data broadcasting device of @), ISDB-T (Terrestrial Digital Broadcasting Integrated Service), or the like receives digital broadcasting. The broadcast receiving module 111 can be constructed as various broadcast apparatuses suitable for providing broadcast signals as well as the above-described digital broadcast apparatuses. The broadcast signal and/or broadcast associated information received via the broadcast receiving module 111 may be stored in the memory 160 (or other type of storage medium).

The mobile communication module 112 transmits the radio signals to and/or receives radio signals from at least one of a base station (e.g., an access point, a Node B, etc.), an external terminal, and a server. Such radio signals may include voice call signals, video call signals, or various types of data transmitted and/or received in accordance with text and/or multimedia messages.

The A/V input unit 120 is for receiving an audio or video signal. The A/V input unit 120 may include a camera 121 and a microphone 122 that processes image data of a still image or video obtained by an image capturing device in a video capturing mode or an image capturing mode. The processed image frame can be displayed on the display unit 151. The image frames processed by the camera 121 may be stored in the memory 160 (or other storage medium) or transmitted via the wireless communication unit 110, and two or more cameras 121 may be provided according to the configuration of the mobile terminal. The microphone 122 can receive sound (audio data) via a microphone in an operation mode of a telephone call mode, a recording mode, a voice recognition mode, and the like, and can process such sound as audio data. Processed audio (voice) The data can be converted to a format output that can be transmitted to the mobile communication base station via the mobile communication module 112 in the case of a telephone call mode. The microphone 122 can implement various types of noise cancellation (or suppression) algorithms to cancel (or suppress) noise or interference generated during the process of receiving and transmitting audio signals.

The user input unit 130 may generate key input data according to a command input by the user to control various operations of the mobile terminal. The user input unit 130 allows the user to input various types of information, and may include a keyboard, a pot, a touch pad (eg, a touch sensitive component that detects changes in resistance, pressure, capacitance, etc. due to contact), a scroll wheel , rocker, etc. In particular, when the touch panel is superimposed on the display unit 151 in the form of a layer, a touch screen can be formed.

The electronic black card 140 is disposed on the light incident side of the CCD image sensor in the camera. The electronic black card is in a transparent state when the power is off, so that the light can enter the CCD image sensor, and is in a non-transparent state when the power is turned on, and blocks the CCD image sensor. The light is only required to power down the electronic black card when the mobile terminal performs global exposure, and powers up the electronic black card at the end of the exposure to read the pixel data after the exposure, and the electronic black card can pass It is realized by a liquid crystal panel or a transparent electronic film.

Output unit 150 is configured to provide an output signal (eg, an audio signal, a video signal, an alarm signal, a vibration signal, etc.) in a visual, audio, and/or tactile manner. The output unit 150 may include a display unit 151, an audio output module 152, and the like.

The display unit 151 can display information processed in the mobile terminal 100. For example, when the mobile terminal 100 is in the phone call mode, the display unit 151 can display a UI (User Interface) or GUI (Graphical User Interface) related to a call or other communication (eg, text messaging, multimedia file download, etc.). When the mobile terminal 100 is in a video call mode or an image capturing mode, the display unit 151 may display a captured image and/or a received image, a UI or GUI showing a video or image and related functions, and the like.

Meanwhile, when the display unit 151 and the touch panel are superposed on each other in the form of a layer to form a touch screen, The display unit 151 can be used as an input device and an output device. The display unit 151 may include at least one of an LCD (Liquid Crystal Display), a TFT-LCD (Thin Film Transistor LCD), an OLED (Organic Light Emitting Diode) display, a flexible display, a three-dimensional (three-dimensional) display, and the like. Some of these displays may be configured to be transparent to allow a user to view from the outside, which may be referred to as a transparent display, and a typical transparent display may be, for example, a TOLED (Transparent Organic Light Emitting Diode) display or the like. According to a particular desired embodiment, the mobile terminal 100 may include two or more display units (or other display devices), for example, the mobile terminal may include an external display unit (not shown) and an internal display unit (not shown) . The touch screen can be used to detect touch input pressure as well as touch input position and touch input area.

The audio output module 152 may convert audio data received by the wireless communication unit 110 or stored in the memory 160 when the mobile terminal is in a call signal receiving mode, a call mode, a recording mode, a voice recognition mode, a broadcast receiving mode, and the like. The audio signal is output as sound. Moreover, the audio output module 152 can provide audio output (eg, call signal reception sound, message reception sound, etc.) associated with a particular function performed by the mobile terminal 100. The audio output module 152 can include a pickup, a buzzer, and the like.

The memory 160 may store a software program or the like for processing and control operations performed by the controller 180, or may temporarily store data (for example, a phone book, a message, a still image, a video, etc.) that has been output or is to be output. Moreover, the memory 160 can store data regarding vibrations and audio signals of various manners that are output when a touch is applied to the touch screen.

The memory 160 may include at least one type of storage medium including a flash memory, a hard disk, a multimedia card, a card type memory (for example, SD or DX memory, etc.), a RAM (random access memory), and an SRAM (static random access memory). , ROM (Read Only Memory), EEPROM (Electrically Erasable Programmable Read Only Memory), PROM (Programmable Read Only Memory), magnetic memory, magnetic disk, optical disk, and the like. Moreover, the mobile terminal 100 can cooperate with a network storage device that performs a storage function of the memory 160 through a network connection.

The interface unit 170 serves as an interface through which at least one external device can connect with the mobile terminal 100. For example, the external device may include a wired or wireless headset port, an external power (or battery charger) port, a wired or wireless data port, a memory card port, a port for connecting a device having an identification module, and an audio input/output. (I/O) port, video I/O port, headphone port, and more. The identification module may be stored to verify various information used by the user using the mobile terminal 100 and may include a UIM (Subscriber Identity Module), a SIM (Customer Identification Module), a USIM (Universal Customer Identification Module), and the like. In addition, the device having the identification module (hereinafter referred to as "identification device") may take the form of a smart card, and thus the identification device may be connected to the mobile terminal 100 via a port or other connection device. The interface unit 170 can be configured to receive input from an external device (eg, data information, power, etc.) and transmit the received input to one or more components within the mobile terminal 100 or can be used at the mobile terminal and external device Transfer data between.

In addition, when the mobile terminal 100 is connected to the external base, the interface unit 170 may function as a path through which power is supplied from the base to the mobile terminal 100 or may be used as a transmission of various command signals allowing input from the base to the mobile terminal 100 The path to the terminal. Various command signals or power input from the base can be used as signals for identifying whether the mobile terminal is accurately mounted on the base.

The controller 180 typically controls the overall operation of the mobile terminal. For example, the controller 180 performs the control and processing associated with voice calls, data communications, video calls, and the like. In addition, the controller 180 may include a multimedia module 181 for reproducing (or playing back) multimedia data, which may be constructed within the controller 180 or may be configured to be separate from the controller 180. The controller 180 may perform a pattern recognition process to recognize a handwriting input or an image drawing input performed on the touch screen as a character or an image.

The power supply unit 190 receives external power or internal power under the control of the controller 180 and provides appropriate power required to operate the various components and components.

The various embodiments described herein can be used, for example, in computer software, hardware, or any of them. The combined computer readable medium is implemented. For hardware implementations, the embodiments described herein may be by using an ASIC (Application Specific Integrated Circuit), a DSP (Digital Signal Processor), a DSPD (Digital Signal Processing Device), a PLD (Programmable Logic Device), an FPGA (Field Programmable Gate) An array, a processor, a controller, a microcontroller, a microprocessor, at least one of the electronic units designed to perform the functions described herein, in some cases, such an embodiment may be at the controller 180 Implemented in the middle. For software implementations, implementations such as procedures or functions may be implemented with separate software modules that permit the execution of at least one function or operation. The software code can be implemented by a software application (or program) written in any suitable programming language, which can be stored in memory 160 and executed by controller 180.

So far, the mobile terminal has been described in terms of its function. Hereinafter, for the sake of brevity, a slide type mobile terminal among various types of mobile terminals such as a folding type, a bar type, a swing type, a slide type mobile terminal, and the like will be described as an example. Therefore, the present invention can be applied to any type of mobile terminal, and is not limited to a slide type mobile terminal.

The mobile terminal 100 as shown in FIG. 3 may be configured to operate using a communication system such as a wired and wireless communication system and a satellite-based communication system that transmits data via frames or packets.

A communication system in which a mobile terminal according to the present invention can be operated will now be described with reference to FIG.

Such communication systems may use different air interfaces and/or physical layers. For example, air interfaces used by communication systems include, for example, FDMA (Frequency Division Multiple Access), TDMA (Time Division Multiple Access), CDMA (Code Division Multiple Access), and UMTS (Universal Mobile Telecommunications System) (in particular, LTE (Long Term Evolution)) ), GSM (Global System for Mobile Communications), etc. As a non-limiting example, the following description relates to a CDMA communication system, but such teachings are equally applicable to other types of systems.

Referring to FIG. 4, the CDMA wireless communication system may include a plurality of mobile terminals 100, a plurality of BSs (base stations) 270, a BSC (Base Station Controller) 275, and an MSC (Mobile Switching Center) 280. The MSC 280 is configured to interface with a PSTN (Public Telephone Switching Network) 290. The MSC 280 is also configured to interface with a BSC 275 that can be coupled to the base station 270 via a backhaul line. Return line can Constructed according to any of a number of known interfaces including, for example, E1/T1, ATM, IP, PPP, Frame Relay, HDSL, ADSL or xDSL. It will be appreciated that the system as shown in FIG. 4 can include multiple BSCs 275.

Each BS 270 can serve one or more partitions (or regions), each of which is covered by a multi-directional antenna or an antenna directed to a particular direction radially away from the BS 270. Alternatively, each partition may be covered by two or more antennas for diversity reception. Each BS 270 can be configured to support multiple frequency allocations, and each frequency allocation has a particular frequency spectrum (eg, 1.25 MHz, 5 MHz, etc.).

The intersection of partitioning and frequency allocation can be referred to as a CDMA channel. BS 270 may also be referred to as a BTS (Base Transceiver Subsystem) or other equivalent terminology. In such a case, the term "base station" can be used to generally refer to a single BSC 275 and at least one BS 270. A base station can also be referred to as a "cell station." Alternatively, each partition of a particular BS 270 may be referred to as a plurality of cellular stations.

As shown in FIG. 4, the BT (Broadcast Transmitter) 295 transmits a broadcast signal to the mobile terminal 100 operating within the system. A broadcast receiving module 111 as shown in FIG. 4 is provided at the mobile terminal 100 to receive a broadcast signal transmitted by the BT 295. In Figure 4, several GPS (Global Positioning System) satellites 300 are shown. The satellite 300 helps locate at least one of the plurality of mobile terminals 100.

In Figure 4, a plurality of satellites 300 are depicted, but it is understood that useful positioning information can be obtained using any number of satellites. Typically, the GPS module is configured to cooperate with satellite 300 to obtain desired positioning information. Instead of GPS tracking technology or in addition to GPS tracking technology, other techniques that can track the location of the mobile terminal can be used. Additionally, at least one GPS satellite 300 can selectively or additionally process satellite DMB transmissions.

As a typical operation of a wireless communication system, BS 270 receives reverse link signals from various mobile terminals 100. Mobile terminal 100 typically participates in calls, messaging, and other types of communications. Each reverse link signal received by a particular base station 270 is processed within a particular BS 270. The obtained data is forwarded to the relevant BSC 275. The BSC provides call resource allocation and coordinated mobility management functions including a soft handoff procedure between the BSs 270. The BSC275 will also receive the received data. To MSC 280, it provides additional routing services for interfacing with PSTN 290. Similarly, PSTN 290 interfaces with MSC 280, which forms an interface with BSC 275, and BSC 275 controls BS 270 accordingly to transmit forward link signals to mobile terminal 100.

Referring to FIG. 5, FIG. 5 is a block diagram showing the electrical structure of the camera of FIG.

The photographic lens 1211 is composed of a plurality of optical lenses for forming a subject image, and is a single focus lens or a zoom lens. The photographic lens 1211 is movable in the optical axis direction under the control of the lens driver 1221, and the lens driver 1221 controls the focus position of the photographic lens 1211 in accordance with a control signal from the lens driving control circuit 1222, and can also be controlled in the case of the zoom lens. Focus distance. The lens drive control circuit 1222 performs drive control of the lens driver 1221 in accordance with a control command from the microcomputer 1217.

An imaging element 1212 is disposed on the optical axis of the photographic lens 1211 near the position of the subject image formed by the photographic lens 1211. The imaging element 1212 is for capturing an image of a subject and acquiring captured image data. Photodiodes constituting each pixel are arranged two-dimensionally and in a matrix on the imaging element 1212. Each photodiode generates a photoelectric conversion current corresponding to the amount of received light, and the photoelectric conversion current is charged by a capacitor connected to each photodiode. The front surface of each pixel is provided with a Bayer array of RGB color filters, and the image pickup element 1212 is a photosensitive element such as a CMOS image sensor or a CCD image sensor.

The imaging element 1212 is connected to the imaging circuit 1213. The imaging circuit 1213 performs charge accumulation control and image signal readout control in the imaging element 1212, and performs waveform shaping after reducing the reset noise of the read image signal (analog image signal). Further, gain improvement or the like is performed to obtain an appropriate signal level.

The imaging circuit 1213 is connected to an A/D converter 1214 that performs analog-to-digital conversion on the analog image signal and outputs a digital image signal (hereinafter referred to as image data) to the bus 1227.

The bus 1227 is a transmission path for transmitting various data read or generated inside the camera. path. The A/D converter 1214 is connected to the bus 1227, and an image processor 1215, a JPEG processor 1216, a microcomputer 1217, a SDRAM (Synchronous Dynamic Random Access Memory) 1218, and a memory interface are also connected. (hereinafter referred to as memory I/F) 1219, LCD driver 1220.

The image processor 1215 performs various kinds of images such as OB subtraction processing, white balance adjustment, color matrix calculation, gamma conversion, color difference signal processing, noise removal processing, simultaneous processing, edge processing, and the like on the image data based on the output of the imaging element 1212. deal with. The JPEG processor 1216 compresses the image data read out from the SDRAM 1218 in accordance with the JPEG compression method when the image data is recorded on the recording medium 1225. Further, the JPEG processor 1216 performs decompression of JPEG image data for image reproduction display. At the time of decompression, the file recorded on the recording medium 1225 is read, and after the compression processing is performed in the JPEG processor 1216, the decompressed image data is temporarily stored in the SDRAM 1218 and displayed on the LCD 1226. Further, in the present embodiment, the JPEG method is adopted as the image compression/decompression method. However, the compression/decompression method is not limited thereto, and other compression/decompression methods such as MPEG, TIFF, and H.264 may be used.

The microcomputer 1217 functions as a control unit of the entire camera, and collectively controls various processing sequences of the camera. The microcomputer 1217 is connected to the operation unit 1223 and the flash memory 1224.

The operating unit 1223 includes, but is not limited to, a physical button or a virtual button, and the entity or virtual button may be a power button, a camera button, an edit button, a dynamic image button, a reproduction button, a menu button, a cross button, an OK button, a delete button, an enlarge button The operation controls such as various input buttons and various input keys detect the operational state of these operation controls.

The detection result is output to the microcomputer 1217. Further, a touch panel is provided on the front surface of the LCD 1226 as a display, and the touch position of the user is detected, and the touch position is output to the microcomputer 1217. The microcomputer 1217 executes various processing sequences corresponding to the user's operation in accordance with the detection result from the operation position of the operation unit 1223.

The flash memory 1224 stores programs for executing various processing sequences of the microcomputer 1217. Micro The computer 1217 performs overall control of the camera in accordance with the program. Further, the flash memory 1224 stores various adjustment values of the camera, and the microcomputer 1217 reads out the adjustment value, and performs control of the camera in accordance with the adjustment value.

The SDRAM 1218 is an electrically rewritable volatile memory for temporarily storing image data or the like. The SDRAM 1218 temporarily stores image data output from the A/D converter 1214 and image data processed in the image processor 1215, the JPEG processor 1216, and the like.

The memory interface 1219 is connected to the recording medium 1225, and performs control for writing image data and a file header attached to the image data to the recording medium 1225 and reading out from the recording medium 1225. The recording medium 1225 is, for example, a recording medium such as a memory card that can be detachably attached to the camera body. However, the recording medium 1225 is not limited thereto, and may be a hard disk or the like built in the camera body.

The LCD driver 1210 is connected to the LCD 1226, and stores image data processed by the image processor 1215 in the SDRAM 1218. When display is required, the image data stored in the SDRAM 1218 is read and displayed on the LCD 1226, or the image data stored in the JPEG processor 1216 is compressed. In the SDRAM 1218, when display is required, the JPEG processor 1216 reads the compressed image data of the SDRAM 1218, decompresses it, and displays the decompressed image data through the LCD 1226.

The LCD 1226 is configured to display an image on the back of the camera body. The LCD 1226 LCD) is not limited thereto, and various display panels (LCD 1226) such as an organic EL may be used. However, the present invention is not limited thereto, and various display panels such as an organic EL may be used.

Based on the above-described mobile terminal hardware structure and communication system, various embodiments of the method of the present invention are proposed.

Embodiment 1

The embodiment of the invention provides a mobile terminal. FIG. 6 is a schematic structural diagram of a mobile terminal according to an embodiment of the present invention; as shown in FIG. 6, the mobile terminal includes a CCD image sensing unit 41; and the CCD image sensing unit 41 is provided with an electron on the light incident side thereof. Black card 42; the electron The black card 42 is in a transparent state in a power-down state, so that light enters the CCD image sensing unit 41 through the electronic black card 42; the electronic black card 42 is in a non-transmissive state in a power-on state, Blocking light entering the CCD image sensing unit 41;

The mobile terminal further includes: a control unit 43 and a data reading unit 44; wherein

The control unit 43 is configured to control the global exposure when the image data is collected by the CCD image sensing unit 41, and to control the power of the electronic black card 42 when the exposure time reaches a preset threshold;

The data reading unit 44 is configured to scan the exposure data row by row/interlace when the control unit 43 controls the electronic black card 42 to be powered on.

In this embodiment, the mobile terminal may be a portable intelligent terminal such as a mobile phone, a tablet computer, or smart glasses. The CCD image sensing unit 41 of the mobile terminal can be understood as the imaging element in FIG. 5; the CCD image sensing unit 41 has a global exposure mode.

In this embodiment, the mobile terminal is provided with an electronic black card 42. The electronic black card 42 can be disposed on the light incident side of the CCD image sensing unit 41, or can be fixed to the CCD image sensing unit 41 by a fixing device. The light incident side or the inside of the CCD image sensing unit 41 can be set by a person skilled in the art as needed.

The electronic black card 42 may be a liquid crystal panel or a transparent electronic film. The liquid crystal panel or the transparent electronic film may be disposed on the light incident side of the CCD image sensing unit 41, or may be fixed to the CCD image sensing unit by a fixing device. The light entrance side of 41. The display panel of the liquid crystal panel or the transparent electronic film can be changed by power-on to make the liquid crystal panel or the transparent electronic film in a non-transparent state. It can be understood that the electronic black card 42 can also adopt other light transmissive materials to achieve light transmission in the power-off state and opaque in the power-on state. The different current magnitudes loaded on the electronic black card 42 correspond to different transmittances of the electronic black card 42; it can be understood that the smaller the current loaded on the electronic black card 42, the electronic black card 42 The higher the light transmittance, the closer the electronic black card 42 is to transparency; the greater the current loaded on the electronic black card 42, the electronic black card 42 The lower the light transmittance, the closer the electronic black card 42 is to opacity.

In this embodiment, the control unit 43 is configured to control global exposure when the CCD image sensing unit 41 acquires image data, so that the CCD image sensing unit 41 is in the global exposure mode. And when the exposure duration reaches a preset threshold, the electronic black card 42 is controlled to be powered to block the light entering the CCD image sensing unit 41. When the control unit 43 controls the electronic black card 42 to be powered on, the data reading unit 44 scans the exposure data line by line/interlace. Correspondingly, the control unit 43 is further configured to control the electronic black card 42 to be powered down after the data reading unit 44 completes the progressive/interlaced scanning exposure data.

As an embodiment, taking the data reading unit 44 as an example of interlaced scanning exposure data, the data reading unit 44 is configured to scan when the control unit 43 controls the electronic black card 42 to be powered on. Transferring the exposure data of the odd-numbered rows, and performing the amplification and analog-to-digital conversion of the transferred exposure data of the odd-numbered rows; scanning and transferring the exposure data of the even-numbered rows, and amplifying the exposure data of the even-numbered rows after the transfer Output after analog to digital conversion.

Specifically, FIG. 7 is a schematic diagram of a control process of a mobile terminal according to an embodiment of the present invention; as shown in FIG. 7, all row data (including odd rows and even rows) of the CCD image sensing unit 41 simultaneously start exposure, and the exposure time is from T0. Start. When the exposure time reaches the preset threshold, that is, the exposure time reaches the time T1, the control unit 43 controls the electronic black card 42 to perform a power-on operation. At this time, the electronic black card 42 is switched from the transparent state to the black blackout state. At this time, the luminous flux of the CCD image sensing unit 41 is zero. The period from T0 to T1 is the exposure time of the CCD image sensing unit 41. During this period, the exposure durations of all the lines of the CCD image sensing unit are the same.

Starting at time T1, the odd-line exposure data of the CCD image sensing unit 41 starts to transfer the charge, transferring the accumulated charge of the photosensitive region to the VCCD; transferring the charge in the VCCD to the HCCD and amplifying it line by line. And output after analog to digital conversion. When the odd-line exposure data is all transferred and converted and output, that is, at the time T2, the charge transfer is performed on the even-line exposure data, and the accumulated charge in the photosensitive region is transferred to the VCCD; the charge in the VCCD is transferred to the line by line to The HCCD is amplified and analog-digital converted and output.

When all of the even-line exposure data is completely transferred and output, that is, at time T3, the control unit 43 performs a power-down operation on the electronic black card 42, and the electronic black card 42 is turned into a transparent state.

According to the technical solution of the embodiment of the present invention, the light entering the CCD image sensing unit is blocked by the power-on of the electronic black card, so that the data of the pixel after the exposure is read, and the electronic black card power-on process can be switched very quickly. Neglected, the electronic black card of the embodiment of the present invention can overcome the shortcomings of the mechanical shutter in terms of service life and closing delay, and completely replaces the conventional mechanical shutter, and greatly prolongs the service life with respect to the mechanical shutter.

Embodiment 2

The embodiment of the invention further provides a mobile terminal. FIG. 8 is a schematic diagram of another composition of a mobile terminal according to an embodiment of the present invention; as shown in FIG. 8, the mobile terminal includes a CCD image sensing unit 41; and the light incident side of the CCD image sensing unit 41 is disposed An electronic black card 42; the electronic black card 42 is in a transparent state in a power-down state, so that light passes through the electronic black card 42 into the CCD image sensing unit 41; the electronic black card 42 is in a power-on state. The lower portion is in a non-transmissive state to block light entering the CCD image sensing unit 41;

The mobile terminal further includes: a control unit 43, a data reading unit 44, and an obtaining unit 45;

The data reading unit 44 is configured to scan the exposure data progressively/interlaced when the control unit 43 controls the electronic black card 42 to be powered on;

The acquiring unit 45 is configured to acquire a state of the electronic black card 42 when an image capturing instruction is detected;

Correspondingly, the control unit 43 is further configured to be powered on in the state of the electronic black card 42. In the state, the electronic black card 42 is controlled to be powered down for global exposure.

Different from the mobile terminal according to the first embodiment, in the embodiment, the mobile terminal further includes an acquiring unit 45, to acquire the electronic device when the image capturing instruction (ie, the photographing instruction) is detected by the acquiring unit 45. The state of the black card 42 is a power-on state or a power-down state; the state of the acquired electronic black card 42 is transmitted to the control unit 43. When the control unit 43 obtains the state that the electronic black card 42 is in the power-on state, that is, when the electronic black card 42 is in the non-transmission state, the electronic black card 42 is controlled to be powered down, so that the CCD is The image sensing unit 41 is capable of global exposure.

As an embodiment, the control unit 43 is further configured to control the electronic black card 42 to be powered up when the shutter close command is detected; or to control the electronic black card 42 when the shutter open command is detected Electricity.

Specifically, in order to improve the flexibility of the control of the electronic black card 42, the user can manually control the power-on and power-down of the electronic black card 42 to achieve the opening and closing of the global shutter. The user can use the virtual control on the mobile terminal display interface, the physical button or gesture on the mobile terminal, and the voice triggering the door open command and the shutter open command to realize active control of the shutter, so that the photographing process is more flexible.

It can be understood that, due to the possibility of exposure failure, such as the light intensity is too large, the image obtained by the exposure is partially too bright, and when the exposure data is read, the pixel value corresponding to each pixel point is judged whether the exposure fails (such as local Too bright), when the exposure fails, the operation of this embodiment is re-executed.

In the first embodiment and the embodiment of the present invention, the acquiring unit 45, the control unit 43 and the data reading unit 44 in the mobile terminal may be used by the CPU (Central Processing Unit) in the mobile terminal in practical applications. The CCD sensing unit in the mobile terminal can be realized by a CCD sensor in practical applications; the electronic black card 42 in the mobile terminal can be a liquid crystal panel or an electronic film in practical applications. achieve.

Embodiment 3

Based on the mobile terminal of the first embodiment, an embodiment of the present invention further provides an exposure method, where the exposure method is applied to a mobile terminal. The mobile terminal includes a charge coupled device CCD image sensing unit; the light incident side of the CCD image sensing unit is provided with an electronic black card; the electronic black card is in a transparent state in a power down state, so that the light passes through The electronic black card enters the CCD image sensing unit; the electronic black card is in a non-transmissive state in a power-on state to block light entering the CCD image sensing unit. FIG. 9 is a schematic flow chart of an exposure method according to an embodiment of the present invention; as shown in FIG. 9, the exposure method includes:

Step 501: When the CCD image sensing unit collects image data, control to perform global exposure.

Step 502: Detect the exposure duration.

Step 503: When the exposure duration reaches a preset threshold, the electronic black card is controlled to be powered up, and the exposure data is progressive/interlaced.

In this embodiment, the mobile terminal may be a portable intelligent terminal such as a mobile phone, a tablet computer, or smart glasses. The CCD image sensing unit of the mobile terminal can be understood as the imaging element in FIG. 5; the CCD image sensing unit has a global exposure mode.

In this embodiment, the mobile terminal is provided with an electronic black card; the electronic black card may be disposed on the light incident side of the CCD image sensing unit, or may be fixed to the light incident side of the CCD image sensing unit by a fixing device. Or, it is disposed inside the CCD image sensing unit, and those skilled in the art can set the position of the electronic black card as needed.

The electronic black card may be a liquid crystal panel or a transparent electronic film. The liquid crystal panel or the transparent electronic film may be disposed on the light incident side of the CCD image sensing unit, or may be fixed to the CCD image sensing unit by a fixing device. Light side. The display panel of the liquid crystal panel or the transparent electronic film can be changed by power-on to make the liquid crystal panel or the transparent electronic film in a non-transparent state. It can be understood that the electronic black card can also adopt other light transmissive materials to achieve light transmission in a power-off state and opaque in a power-on state. The different current magnitudes loaded on the electronic black card are different according to the transmittance of the electronic black card; it can be understood that the smaller the current loaded on the electronic black card, the more the light transmittance of the electronic black card is. High, the electronic black card is closer to being transparent; the greater the current loaded on the electronic black card, the lower the light transmittance of the electronic black card, the closer the electronic black card is to opacity.

In this embodiment, when the CCD image sensing unit collects image data, the global exposure is controlled to cause the CCD image sensing unit to be in the global exposure mode. And when the exposure duration reaches a preset threshold, the electronic black card is controlled to be powered to block light entering the CCD image sensing unit. When the electronic black card is controlled to be powered up, the exposure data is scanned progressively/interlaced. Correspondingly, after the progressive/interlaced scanning exposure data is completed, the electronic black card is controlled to be powered down.

As an embodiment, taking the interlaced scanning exposure data as an example, the controlling the electronic black card to be powered on, and the progressive/interlaced scanning exposure data, including: controlling the electronic black card to be powered, scanning and transferring odd numbers Exposure data of the row, performing amplification and analog-to-digital conversion of the transferred exposure data of the odd-numbered rows; scanning and transferring the exposure data of the even-numbered rows, and amplifying and modulating the exposure data of the even-numbered rows after the transfer Output after conversion. The controlling the electronic black card to be powered on includes: detecting an exposure time of the CCD image sensing unit when the CCD image sensing unit starts to expose; and controlling when the exposure time reaches a preset threshold The electronic black card is powered on.

Correspondingly, after the exposure data of the odd rows and the exposure data of the even rows are converted and output, the method further comprises: controlling the electronic black card to be powered down.

Specifically, as shown in FIG. 7, all the line data (including the odd-numbered lines and the even-numbered lines) of the CCD image sensing unit start exposure at the same time, and the exposure time starts from the time T0. When the exposure time reaches the preset threshold, that is, the exposure time reaches the time T1, the electronic black card 42 is controlled to perform a power-on operation. At this time, the electronic black card is switched from the transparent state to the black light-shielding state, and the CCD image is at this time. The luminous flux of the sensing unit is zero. Among them, the period from T0 to T1 is the exposure time of the CCD image sensing unit, and the exposure duration of all the rows of the CCD sensing unit is the same during this period.

Starting at time T1, the odd-line exposure data of the CCD image sensing unit begins to transfer charge, transferring the accumulated charge of the photosensitive region to the VCCD; transferring the charge in the VCCD to the HCCD and amplifying it. Output after analog to digital conversion. When the odd-line exposure data is all transferred and converted and output, that is, at time T2, charge transfer is performed on the even-line exposure data, and the accumulated charge in the photosensitive region is transferred to the VCCD; the charge in the VCCD is transferred to the HCCD line by line and Output after amplification and analog-to-digital conversion.

When all the even-line exposure data is completely transferred and output, that is, at time T3, the control performs a power-down operation on the electronic black card, and the electronic black card is turned into a transparent state.

Embodiment 4

Based on the second embodiment, an embodiment of the present invention further provides an exposure method, which is applied to a mobile terminal. The mobile terminal includes a charge coupled device CCD image sensing unit; the light incident side of the CCD image sensing unit is provided with an electronic black card; the electronic black card is in a transparent state in a power down state, so that the light passes through The electronic black card enters the CCD image sensing unit; the electronic black card is in a non-transmissive state in a power-on state, to block the entering the CCD image sensing The light of the unit. FIG. 10 is another schematic flowchart of an exposure method according to an embodiment of the present invention; as shown in FIG. 10, the exposure method includes:

Step 501: Acquire the state of the electronic black card when the image capturing instruction is detected; and control the electronic black card to be powered down when the state of the electronic black card is the power-on state, to perform global exposure.

Step 502: When the CCD image sensing unit collects image data, control to perform global exposure.

Step 503: Detect the exposure duration.

Step 504: When the exposure duration reaches a preset threshold, the electronic black card is powered on, and the progressive/interlaced exposure data is scanned.

Different from the third embodiment, in this embodiment, before the global exposure of the CCD image sensing unit is performed, when an image acquisition instruction (ie, a photographing instruction) is detected, the state of the electronic black card is acquired; When the state of the card is in the power-on state, the electronic black card is controlled to be powered down for global exposure.

In one embodiment, the method further includes: controlling the electronic black card to be powered up when a shutter close command is detected; or controlling the electronic black card to be powered down when detecting a shutter open command.

Specifically, in order to improve the flexibility of the electronic black card control, the user can manually control the power-on and power-down of the electronic black card to achieve the global shutter opening and closing. The user can use the virtual control on the mobile terminal display interface, the physical button or gesture on the mobile terminal, and the voice triggering the door open command and the shutter open command to realize active control of the shutter, so that the photographing process is more flexible.

The embodiment of the invention further provides a computer storage medium, wherein the computer storage medium stores computer executable instructions, and the computer executable instructions are used to perform the exposure method according to the embodiment of the invention.

FIG. 11 is a schematic diagram of a hardware entity of a mobile terminal according to an embodiment of the present invention; as shown in FIG. 11, the mobile terminal includes: a CCD image sensor 74, an electronic black card, and a processor; and the CCD image sensor 74 An electronic black card is disposed on the light incident side; the electronic black card is in a transparent state in a power-off state, so that light passes through the electronic black card to enter the CCD image sensor 74; the electronic black card is in a power-on state In a non-transmissive state, occlusion into the CCD image sensor 74;

The CCD image sensor 74 is configured to collect image data;

The processor 71 is configured to: when the CCD image sensor 74 acquires image data, control to perform global exposure; detect an exposure duration; and when the exposure duration reaches a preset threshold, control the electronic black card to be powered on, and Progressive/interlaced exposure data.

In this embodiment, the processor 71 is further configured to control the electronic black card to be powered down after the progressive/interlaced scan exposure data is completed.

In this embodiment, the processor 71 is configured to control, when the electronic black card is powered on, scan and transfer the exposure data of the odd lines, and perform the amplification and analog-to-digital conversion of the transferred exposure data of the odd lines. Outputting; scanning and transferring the exposure data of the even-numbered lines, and amplifying and modulating the exposure data of the even-numbered lines after the transfer.

In this embodiment, the processor 71 is further configured to perform exposure data of odd rows and even rows. After the exposure data is converted and output, the electronic black card is controlled to be powered down.

In this embodiment, the processor 71 is further configured to: when the CCD image sensing unit starts to expose, detect an exposure time of the CCD image sensing unit; when the exposure time reaches a preset threshold, the control station The electronic black card is powered on.

In this embodiment, the processor 71 is further configured to acquire a state of the electronic black card when an image capturing instruction is detected, and to control the electronic black card when the state of the electronic black card is a power-on state. Power down for global exposure.

In this embodiment, the processor 71 is further configured to control the electronic black card to be powered when the shutter close command is detected; or to control the electronic black card to be powered down when the shutter open command is detected.

Specifically, in practical applications, the mobile terminal may include a processor 71, a storage medium 72, a CCD image sensor 74, and at least one external communication interface 73; the processor 71, the storage medium 72, the CCD image sensor 74, and an external Communication interfaces 73 are all connected by a bus 75. The light-incident side of the CCD image sensor 74 of the mobile terminal is provided with an electronic black card; the electronic black card is in a transparent state in a power-down state, so that light enters the CCD image sensor 74 through the electronic black card; The electronic black card is in a non-transmissive state in a powered state to block light entering the CCD image sensor 74. The computer medium executable by the processor 71 is stored in the storage medium 72. The processor 71 in this embodiment may have the same function as the controller 180 in FIG.

It is to be understood that the term "comprises", "comprising", or any other variants thereof, is intended to encompass a non-exclusive inclusion, such that a process, method, article, or device comprising a series of elements includes those elements. It also includes other elements that are not explicitly listed, or elements that are inherent to such a process, method, article, or device. An element that is defined by the phrase "comprising a ..." does not exclude the presence of additional equivalent elements in the process, method, item, or device that comprises the element.

The serial numbers of the embodiments of the present invention are merely for the description, and do not represent the advantages and disadvantages of the embodiments.

In the several embodiments provided by the present application, it should be understood that the disclosed apparatus and method may be implemented in other manners. The device embodiments described above are merely illustrative. For example, the division of the unit is only a logical function division. In actual implementation, there may be another division manner, such as: multiple units or components may be combined, or Can be integrated into another system, or some features can be ignored or not executed. In addition, the coupling, or direct coupling, or communication connection of the components shown or discussed may be indirect coupling or communication connection through some interfaces, devices or units, and may be electrical, mechanical or other forms. of.

The units described above as separate components may or may not be physically separated, and the components displayed as the unit may or may not be physical units, that is, may be located in one place or distributed to multiple network units; Some or all of the units may be selected according to actual needs to achieve the purpose of the solution of the embodiment.

In addition, each functional unit in each embodiment of the present invention may be integrated into one processing unit, or each unit may be separately used as one unit, or two or more units may be integrated into one unit; The unit can be implemented in the form of hardware or in the form of hardware plus software functional units.

A person skilled in the art can understand that all or part of the steps of implementing the above method embodiments may be completed by using hardware related to the program instructions. The foregoing program may be stored in a computer readable storage medium, and the program is executed when executed. The foregoing steps include the steps of the foregoing method embodiments; and the foregoing storage medium includes: a removable storage device, a ROM, a RAM, a magnetic disk, or an optical disk, and the like, which can store program codes.

Alternatively, the above-described integrated unit of the present invention may be stored in a computer readable storage medium if it is implemented in the form of a software function module and sold or used as a standalone product. Based on such understanding, the technical solution of the embodiments of the present invention may be embodied in the form of a software product in essence or in the form of a software product stored in a software product. The storage medium includes instructions for causing a computer device (which may be a personal computer, server, or network device, etc.) to perform all or part of the methods described in various embodiments of the present invention. The foregoing storage medium includes various media that can store program codes, such as a mobile storage device, a ROM, a RAM, a magnetic disk, or an optical disk.

The above is only a specific embodiment of the present invention, but the scope of the present invention is not limited thereto, and any person skilled in the art can easily think of changes or substitutions within the technical scope of the present invention. It should be covered by the scope of the present invention. Therefore, the scope of the invention should be determined by the scope of the appended claims.

Industrial applicability

The technical solution of the embodiment of the present invention blocks the light entering the CCD image sensing unit by power-on of the electronic black card, so as to read the data of the pixel after the exposure, since the electronic black card power-on process is very fast, the switching time is negligible. Therefore, the electronic black card of the embodiment of the present invention can overcome the shortcomings of the mechanical shutter in terms of service life and the closing delay, and completely replaces the conventional mechanical shutter, and greatly prolongs the service life with respect to the mechanical shutter.

Claims

A mobile terminal includes a charge coupled device CCD image sensing unit; an optical black card is disposed on a light incident side of the CCD image sensing unit; and the electronic black card is in a transparent state in a power down state. The light is passed through the electronic black card into the CCD image sensing unit; the electronic black card is in a non-transmissive state in a power-on state to block light entering the CCD image sensing unit;

The mobile terminal further includes: a control unit and a data reading unit; wherein

The control unit is configured to control global exposure when the image data is collected by the CCD image sensing unit, and to control powering on the electronic black card when the exposure time reaches a preset threshold;

The data reading unit is configured to scan the exposure data progressively/interlaced when the control unit controls the electronic black card to be powered on.
The mobile terminal of claim 1, wherein the control unit is further configured to control the electronic black card to be powered down after the data reading unit completes the progressive/interlaced scan exposure data.
The mobile terminal according to claim 1, wherein the data reading unit is configured to scan and transfer the exposure data of the odd lines when the control unit controls the electronic black card to be powered on, and transfer the transferred data The exposure data of the odd-numbered rows is amplified and output after analog-to-digital conversion; the exposure data of the even-numbered rows is scanned and transferred, and the exposure data of the even-numbered rows after the transfer is amplified and analog-digital converted and output.
The mobile terminal according to claim 3, wherein the control unit is configured to control the electronic black card to be powered down after the data reading unit converts the exposure data of the odd rows and the exposure data of the even rows.
The mobile terminal according to claim 3, wherein the control unit is configured to control the electronic black card to be powered on when the CCD image sensing unit starts exposure and the exposure time reaches a preset threshold.
The mobile terminal according to claim 1, wherein the mobile terminal further comprises an obtaining unit configured to acquire a state of the electronic black card when an image capturing instruction is detected;

The control unit is further configured to control the electronic black card to be powered down for global exposure when the state of the electronic black card is a power-on state.
The mobile terminal of claim 1, wherein the control unit is further configured to control the electronic black card to be powered up when a shutter close command is detected; or to control the electronic when a shutter open command is detected The black card is powered down.
The mobile terminal according to any one of claims 1 to 7, wherein the currents loaded on the electronic black card are different in light transmittance corresponding to the electronic black card.
The mobile terminal according to claim 1, wherein the electronic black card is disposed on a surface of the CCD image sensing unit on the light incident side, or is fixed to a light incident side of the CCD image sensing unit, or is set Inside the CCD image sensing unit.
An exposure method is applied to a mobile terminal; the mobile terminal includes a charge coupled device CCD image sensing unit; an optical black card is disposed on a light incident side of the CCD image sensing unit; and the electronic black card is powered off a transparent state in which the light enters the CCD image sensing unit through the electronic black card; the electronic black card is in a non-transmissive state in a power-on state to block the entry into the CCD image sensing unit Light; the method includes:

When the CCD image sensing unit collects image data, the control performs global exposure;

Detecting the exposure time;

When the exposure duration reaches a preset threshold, the electronic black card is controlled to be powered up, and the exposure data is progressive/interlaced.
The method of claim 10, wherein the method further comprises controlling the electronic black card to be powered down after the progressive/interlaced scan exposure data is completed.
The method of claim 10 wherein said controlling said electronic black card to power up and progressive/interlaced scanning of exposure data comprises:

Controlling, when the electronic black card is powered on, scanning and transferring the exposure data of the odd rows, and amplifying and outputting the exposure data of the odd rows after the transfer; scanning and transferring the exposure data of the even rows, and transferring The exposure data of the subsequent even rows is amplified and analog-digital converted and output.
The method according to claim 12, wherein after the exposure data of the odd rows and the exposure data of the even rows are converted and output, the method further comprises: controlling the electronic black card to be powered down.
The method of claim 12, wherein said controlling said electronic black card to power up comprises:

When the CCD image sensing unit starts exposure, detecting an exposure time of the CCD image sensing unit;

When the exposure time reaches a preset threshold, the electronic black card is controlled to be powered on.
The method according to claim 10, wherein the method further comprises: acquiring an electronic black card when the image capturing instruction is detected;

When the state of the electronic black card is the power-on state, the electronic black card is controlled to be powered down for global exposure.
The method of claim 10, wherein the method further comprises: controlling the electronic black card to power up when a shutter close command is detected;

Alternatively, when the shutter open command is detected, the electronic black card is controlled to be powered down.
The method according to any one of claims 10 to 16, wherein the currents loaded on the electronic black card are different in light transmittance corresponding to the electronic black card.
A mobile terminal includes: a CCD image sensor, an electronic black card, and a processor; an optical black card is disposed on a light incident side of the CCD image sensor; and the electronic black card is in a transparent state in a power down state In order to allow light to enter the CCD image sensor through the electronic black card; the electronic black card is in a non-transmissive state in a power-on state to block entering the CCD image sensor;

The CCD image sensor is configured to collect image data;

The processor is configured to: when the CCD image sensor acquires image data, control to perform global exposure; detect an exposure duration; when the exposure duration reaches a preset threshold, control the electronic black card to be powered on, and progressively / Interlaced exposure data.
The mobile terminal of claim 18, wherein the processor is further configured to control the electronic black card to be powered down after the progressive/interlaced scan exposure data is completed.
A computer storage medium having stored therein computer executable instructions for performing the exposure method of any one of claims 10 to 17.