Hyundai Motor Company

Samsung Electronics Co., Ltd.

Kia Corporation

Kia Motors Corporation

Samsung Electro-mechanics Co., Ltd.

Sung Joon Park

Jin Wook Lee

Chang Hyun Lim

Tae-Jin Kim

Won Jae Han

Tae Kyun Kim

Sang Heon Han

Byung Ha Park

Kui Hyun Kim

Jae Goon Aum

Myong Jong Kwon

Kyong Il Kim

Dong Sik Shim

Chang Shin Park

Young Ung Ha

Young Hye Park

Dai Geun Kim

Takashi Shimayama

Soo Hong Kim

Ji Yun Kang

A bulk-acoustic wave (BAVV) resonator is provided. The BAW includes a substrate, a first electrode disposed on the substrate, a piezoelectric layer disposed to cover at least a portion of the first electrode, and a second electrode disposed to cover at least a portion of the piezoelectric layer, wherein the piezoelectric layer includes an intermediate layer, a first layer disposed above the intermediate layer and a second layer disposed below the intermediate layer, the first layer and the second layer are symmetrical in relation to a plane through which a central line of the intermediate layer passes in a thickness direction, and a thickness of the intermediate layer is greater than a thickness of each of the first and second layers.

Bulk-acoustic wave resonator

In accordance with one aspect of the disclosure, a driver monitoring apparatus includes: a camera having a field of view facing a driver's seat of a vehicle and configured to provide image data; and a controller configured to process the image data, and the controller is configured to identify at least one of a respiratory rate per minute or a respiratory volume of a driver based on the image data, identify whether the driver is in a state of a drowsy driving based on at least one of the respiratory rate per minute or the respiratory volume of the driver, and provide a control request to output a warning message through a display and speaker of the vehicle based on the drowsy driving of the driver.

Driver monitoring apparatus, vehicle and control method

A vehicle includes a first sensor configured to measure a respiration temperature, a facial temperature, and a heart temperature of a user, a second sensor configured to measure a carbon dioxide concentration in a respiration of the user, and a controller configured to determine a respiration volume and a respiration cycle of the user based on the first sensor, based on the measured carbon dioxide concentration in the respiration being greater than or equal to a predetermined carbon dioxide concentration, compare each of the respiration volume and the respiration cycle with a predetermined respiration volume and a predetermined respiration cycle, and based on the comparison result, output an alarm signal corresponding to each state of an awakening state or a sleeping state in response to a determination that the user is in the awakening state or the sleeping state.

Vehicle and method of controlling the same

A vehicular infotainment apparatus may include: a display unit configured to display information on a screen; a projection unit disposed proximate to the screen of the display unit, the projection unit being rotatable, movable, and configured to project the information displayed on the screen of the display unit; a driver configured to rotate and move the projection unit; and a controller configured to control operation of the display unit and the driver and to receive a request for rotation of the projection unit. The controller may be further configured to control the driver such that the driver causes the projection unit to rotate or move at a rotation angle corresponding to the request for rotation of the projection unit and to control the display unit such that the display unit modifies the information displayed on the screen of the display unit according to the rotation angle.

Vehicular infotainment apparatus, method of controlling the same, and vehicle including the same

A method for transmitting data between controllers in a vehicle network includes transmitting a first data code including an identification number. A second data code is transmitted including a length value of data codes to be transmitted. Data codes are transmitted by using the length value of the data codes to be transmitted. A random number and a position information value of the data codes to be transmitted are included in last and previously transmitted data codes.

Data transmission method and data reception method between controllers in vehicle network

A system for reprogramming a vehicle controller includes: a plurality of controllers equipped in a vehicle; a battery configured to provide operation power to the plurality of controllers; and a charging control device configured to sense a connection with a charger providing charging power from an external power source to the battery, request latest software version information corresponding to each of the plurality of controllers from the charger through power-line communication (PLC) while the charging power is provided from the charger to the battery, confirm the requested latest software version information, receive upgrade data from the charger, and transmit the received upgrade data to the plurality of controllers. The charging control device assigns different communication frequency bands to the plurality of controllers, respectively, for communicating with the plurality of controllers using PLC, and transmits the upgrade data using the respective communication frequency band assigned to the plurality of controllers.

System and method for reprogramming of vehicle controller

An inkjet print head including a substrate and a first film member stacked on the substrate to form an ink path, and a manufacturing method thereof. The first film member includes a path-defining layer made of a photosensitive material and formed with the ink path, and an adhesive layer made of a photosensitive material and used to stably bond the path-defining layer to the substrate. With this configuration, the path-defining layer and the adhesive layer can be simultaneously stacked on the substrate and also, can be patterned simultaneously.

Inkjet print head and manufacturing method thereof

An inkjet printer head includes a substrate, an insulating layer having a groove and disposed on the substrate, a heating member having a concavely curved upper surface and disposed on an upper portion of the groove, an electrode to make contact with the heating member to apply electric current to the heating member, a chamber layer disposed on the heating member, and a nozzle layer having one or more nozzles and disposed on the chamber layer. According to the inkjet printer head, the heating member has a curved structure to increase a length of the heating member, so that resistance of the heating member can be increased. Thus, the heating member can stably operate regardless of current variation applied thereto, and the printing work can be performed.

Inkjet printer head and method to manufacture the same

A method of manufacturing an inkjet print head that includes an improved process of forming an ink feed hole, thereby enabling an increase in productivity and a favorable ink supply via the ink feed hole. The method includes preparing a substrate on which a heater to heat an ink is formed on the front side thereof, forming a flow passage formation layer on the front side of the substrate such that the flow passage formation layer defines an ink flow passage, forming a nozzle layer provided with a nozzle on the flow passage formation layer, forming a first protective layer such that the first protective layer covers the flow passage formation layer and the nozzle layer, applying a mask material used to etch the substrate to the rear side of the substrate, applying a second protective layer to the lateral side of the substrate to protect the lateral side of the substrate, and forming an ink feed hole on the substrate by wet etching. Tantalum (Ta) is used as the mask material. Parylene is used as the second protective layer.

Method of manufacturing inkjet print head

A method of manufacturing an inkjet print head simplifies a manufacturing process and uniformly forms an ink channel and includes forming a chamber layer using a low-speed optical hardening material on a substrate, hardening regions of the chamber layer for the wall of an ink channel by selectively exposing the chamber layer to light, forming a nozzle layer using a high-speed optical hardening material, having a higher optical reaction speed than that of the low-speed optical hardening material, on the chamber layer, hardening regions of the nozzle layer other than nozzles by selectively exposing the nozzle layer to light, and forming the ink channel and the nozzles by developing the chamber layer and the non-exposed regions of the nozzle layer.

Growing community of inventors

Gyeonggi-do, South Korea

Sung Joon Park