Samsung Electro-mechanics Co., Ltd.

Gyu Won Kim

Kyoung Joong Min

Ho Seop Jeong

In Taek Song

Won Tae Choi

Kyung Rin Kim

Joo Young Ha

Chang Jae Heo

Chan Yong Jeong

Hak Sun Kim

Song Cheol Hong

Jin Yong Kang

Yo Sub Moon

Tae Hyeon Kwon

Tae Hwan Joo

An analog-to-digital conversion apparatus is provided. The analog-to-digital conversion apparatus includes an integrated circuit (IC) configured to generate a first interrupt request; and an analog-to-digital converter included in an integrated circuit, wherein the analog-to-digital converter is configured to receive a plurality of analog values from a plurality of channels, and convert at least a portion of the received analog values that correspond to at least a portion of channels of the plurality of channels, that are selected based on the first interrupt request into at least a portion of digital values.

Analog-to-digital conversion apparatus and camera device including the same

A camera module includes a gyro sensor to generate shaking data; a first driver integrated circuit (IC) to generate a driving signal to move a first lens barrel in at least one direction perpendicular to an optical axis direction, according to the shaking data; and a second driver IC to generate a driving signal to move a second lens barrel in at least one direction perpendicular to the optical axis direction, according to the shaking data. The first driver IC includes a register unit to store the shaking data transferred from the gyro sensor, and the shaking data stored in the register unit is transferred to the second driver IC.

Camera module

An actuator of a camera module includes: driving wires to drive a lens barrel in a direction perpendicular to an optical axis; a driver to provide a driving signal in the form of a pulse to the driving wires; and a controller to generate a control signal based on a target position of the lens barrel and a present position of the lens barrel, to control the driver, and to generate resistance offsets between the driving wires based on resistance slope of each of the driving wires.

Actuator of camera module

An analog-digital conversion apparatus includes: an analog-digital converter (ADC) included in an integrated circuit (IC) and configured to operate based on a sampling clock constituting a portion of a plurality of clocks; and a driver included in the IC and configured to operate based on another portion of the plurality of clocks, and produce a driving signal based on a digital value output from the ADC. The ADC and the driver are synchronized with each other based on an interrupt request (Irq) of the IC.

Analog to digital conversion apparatus for providing digital value to driver

An optical image stabilization (OIS) circuit, applied to an OIS device including a single sensor configured to provide sensor data is provided. The OIS circuit includes a main OIS circuit configured to output a control signal to the sensor, and receive the control signal from the sensor with sensor data, output an interruption signal to initiate a control operation, and control a main OIS operation, and a sub-OIS circuit configured to be synchronized with the main OIS circuit based on the control signal input with the sensor data, and control a sub OIS operation based on the interruption signal.

OIS circuit, OIS device with synchronization between single sensor and multiple drivers, and operation method thereof

A method of manufacturing a camera module that includes a housing having an inner space, a frame disposed in the inner space of the housing and configured to accommodate a lens barrel therein, and optical image stabilization driving wires including driving wires driving the frame in a direction perpendicular to an optical axis. The method includes fixing both end portions of a target driving wire, among the driving wires, to a first inner side surface of the housing, disposing the frame adjacent a second inner side surface of the housing that opposes the first inner side surface, and coupling a center part of the target driving wire to a mounting member of the frame that faces the first inner side surface of the housing.

Method of manufacturing camera module

An optical image stabilization (OIS) circuit includes a first OIS circuit configured to operate as a serial peripheral interface (SPI) bus master with respect to a single sensor, read sensor data from the single sensor, and store the read sensor data, and configured to transmit a control code in a first SPI slave operation mode prior to a second SPI slave operation mode, and provide the sensor data in the second SPI slave operation mode, while operating as an SPI slave; and a second OIS circuit configured to operate as a SPI master with respect to the first OIS circuit, read the control code from the first OIS circuit, and store the control code in a first SPI master operation mode, and further configured to read and store the sensor data in a second SPI master operation mode subsequent to the first SPI master operation mode.

OIS circuit, OIS data sharing device, and operating method thereof

A camera module includes a support structure having an internal space, a first movable body movably disposed inside the support structure, a second movable body elevatably disposed in an internal space of the first movable body, and a driving unit disposed in at least one of a space between the support structure and the first movable body and a space between the first movable body and the second movable body. The driving unit includes a driving wire, formed of a shape memory alloy, and a spring disposed to overlap the driving wire. The first and second movable bodies are moved by driving force applied in one direction by the driving wire, and driving force applied in another direction by the spring.

Camera module and portable electronic device

A camera apparatus includes an optical image stabilizer (OIS) device including a control circuit controlling data processing including reading data and writing data, and a digital circuit including a serial peripheral interface bus (SPI) master performing data processing based on SPI communications performed using the SPI master under control of the control circuit to perform an OIS function; and a sensor device including an SPI slave communicating with the SPI master and responding to a request from the OIS device. The control circuit sets a selected SPI communications mode selected from a plurality of predefined SPI communications modes. The digital circuit performs the selected SPI communications mode, and in response to the selected SPI communications mode being a burst status mode with a status check, checks two or more status bits for corresponding data to be read from the sensor device before reading the corresponding data from the sensor device.

Optical image stabilization device and communication method thereof with enhanced serial peripheral interface communication efficiency

A camera apparatus includes an optical image stabilizer (OIS) circuit including a control circuit configured to control data reading, and a digital circuit including a serial peripheral interface bus (SPI) master and configured to perform data processing using SPI communications in response to control of the control circuit to perform hand-shake correction. The camera apparatus further includes a navigation sensor including an SPI slave for communication with the SPI master and configured to provide corresponding data in response to a request from the OIS circuit. The control circuit is further configured to control communication using a single mode or a burst mode based on a preset SPI communications setting, and the digital circuit is further configured to read data from the navigation sensor using two frames based on a single SPI communications setting in a case of using the burst mode.

Camera apparatus having OIS function and communications method thereof

An analog-digital converter (ADC) module includes: an ADC configured to convert an analog signal into digital data according to a control signal; and an ADC controller configured to receive a mode selection signal setting the ADC controller in one of a plurality of modes, output the control signal to the ADC, and receive the digital data from the ADC. The ADC controller repeatedly outputs the control signal to the ADC using a timer, and stores the digital data in a register in response to an end of conversion (EOC) signal from the ADC, in a first mode. The ADC controller outputs the control signal to the ADC in response to an instruction signal, stores the digital data in the register in response to the EOC signal being input from the ADC, and outputs an interrupt signal to the ADC in response to the digital data being stored in the register, in a second mode.

Analog-digital converter module and camera driving apparatus including the same

An actuator of a camera module includes a shape memory alloy (SMA) wire group and a driver. The shape memory alloy (SMA) wire group includes first SMA wires driving a first lens module and second SMA wires driving a second lens module. The driver configured to drive a pair of SMA wires driving different lens modules of the first and the second lens modules among the first and the second SMA wires in a same scheme.

An actuator of a camera module includes a magnetic body, a driving coil disposed to face the magnetic body, and a driving apparatus including a driving circuit connected to the driving coil and selectively providing one of a first control signal and a second control signal to the driving circuit according to a driving mode. The driving apparatus compares a level of a control signal of a previous driving mode with a level of a control signal of a following driving mode upon the driving mode being switched.

Actuator and driving apparatus of camera module for preventing image signal distortion due to driving mode switching

There is provided an apparatus for processing an on-screen display (OSD), the apparatus including: a buffer unit receiving first dynamic guideline image information, a color determining unit determining colors for previously divided sections included in the first dynamic guideline image information from the buffering unit, and an image synthesizing unit synthesizing second dynamic guideline image information having the colors for each of the sections, determined by the color determining unit with an image from a camera. With the apparatus for processing an OSD, a user freely sets colors of a warning message, a static guideline, and a dynamic guideline, whereby the warning message, the static guideline, and the dynamic guideline can be displayed on a screen without obscuring a rearview image. In addition, a dynamic guideline can be set as different colors according to sections divided into distances from the rear of a vehicle and an image can be continuously displayed. Further, the camera module can be reprogrammed.

Growing community of inventors

Suwon-si, South Korea

Gyu Won Kim