Abstract: A doorbell apparatus according to one embodiment of the present disclosure includes an input port configured to receive power; an interface including a plurality of interface components and a first controller that is set to control the plurality of interface components; a battery configured to supply the power to the interface; a switching circuit connected to a switch and configured to change a path of a current that is supplied from the input port according to an ON or OFF state of the switch; and a second controller configured to control charging of the battery and a current supply to the interface using the current that is output from the switching circuit, wherein the second controller limits a current supplied to the interface according to an operation mode of the interface, and the operation mode includes a first operation mode and a second operation mode in which power required inside the interface is less than that of the first operation mode.

Abstract: A doorbell device including: a bracket including a fixed surface coupled to a support structure; a viewing angle-adjusting bracket rotatably coupled to the bracket and including a front surface inclined with respect to the fixed surface; and a doorbell body coupled to the viewing angle-adjusting bracket and including a camera having an optical axis inclined with respect to an axis center of the viewing angle-adjusting bracket. A viewing angle of the camera can be arbitrarily changed by a user so that a visitor's identifiability can be improved.

Abstract: According to one embodiment of the present invention, a doorbell device comprises: a power input unit; an interface unit; a battery unit for supplying power to the interface unit; a switching circuit connected to a doorbell switch so as to change a path of a current supplied from the power input unit according to an on/off state of the doorbell switch; and a control unit for charging the battery unit by using a current outputted from the switching circuit, wherein the control unit performs control such that the battery unit supplies power to the interface unit if the current outputted from the switching circuit toward the control unit is cut off.

Abstract: A doorbell device according to an embodiment of the present invention comprises: a power input unit; an interface unit; a battery unit for supplying power to the interface unit; a switching circuit which is connected to a doorbell switch so as to change the path of a current supplied from the power input unit according to the on/off state of the switch; a control unit for charging the battery unit by using a current output from the switching circuit; and a current detection unit which is connected between the switching circuit and the control unit so as to detect the current output from the switching circuit, wherein the control unit limits the current output from the switching circuit when the current detected by the current detection unit has a value equal to or greater than a predetermined value.

Abstract: According to one embodiment of the present disclosure, a bypass apparatus includes a current detector for detecting an input current; a first switch device which is turned on when a current detected in the current detector is lower than a reference current, and turned off when the detected current is equal to or higher than the reference current; and a second switch device which connects in parallel with the first switch device, is turned off when the detected current is lower than the reference current, and turned on when the detected current is equal to or higher than the reference current, wherein between the first switch device and the second switch device is connected a chime bell, and between the current detector and the first switch device is connected a load.

Abstract: The present invention relates to an image processing device including a lens module, an image sensor for converting an optical signal inputted through the lens module into an image signal, a sensing sensor for sensing a target object, and an image processing module for receiving the image signal and a result of sensing the target object and correcting the image signal if the target object is not in a preset center range.

Abstract: A doorbell apparatus according to one embodiment of the present disclosure includes an input port configured to receive power; an interface including a plurality of interface components and a first controller that is set to control the plurality of interface components; a battery configured to supply the power to the interface; a switching circuit connected to a switch and configured to change a path of a current that is supplied from the input port according to an ON or OFF state of the switch; and a second controller configured to control charging of the battery and a current supply to the interface using the current that is output from the switching circuit, wherein the second controller limits a current supplied to the interface according to an operation mode of the interface, and the operation mode includes a first operation mode and a second operation mode in which power required inside the interface is less than that of the first operation mode.

Abstract: A network camera and an image capturing method using rotating prism are described. The network camera includes a lens module including lenses having incident paths different from each other, a prism reflecting light incident through the lens module, a prism driving module rotating the prism, and a controller controlling the prism through the prism driving module. The prism reflects lights incident through the incident paths different from each other by performing a rotation operation according to a control of the prism driving module.

Abstract: Disclosed is a camera module. The camera module includes a lens barrel including a lens, a lens holder coupled with the lens barrel, and a sensor unit in the lens holder. The lens holder includes a body part including the sensor unit, and a focal length adjusting unit interposed between the lens barrel and the body part to adjust a focal length between the lens and the sensor unit. The focal length of the camera module is easily adjusted without disassembling the camera module.

Abstract: Disclosed are a network camera and a photographing method thereof. The network camera includes a lens module comprising a plurality of lenses having incident paths different from each other, a prism reflecting light incident through the lens module, a prism driving module rotating the prism, and a controller controlling the prism through the prism driving module. The prism reflects lights incident through the incident paths different from each other by performing a rotation operation according to a control of the prism driving module.

Abstract: Disclosed is a camera module. The camera module includes a lens barrel including a lens, a lens holder coupled with the lens barrel, and a sensor unit in the lens holder. The lens holder includes a body part including the sensor unit, and a focal length adjusting unit interposed between the lens barrel and the body part to adjust a focal length between the lens and the sensor unit. The focal length of the camera module is easily adjusted without disassembling the camera module.

Abstract: Disclosed are a network camera and a method of controlling lighting thereof. The network camera includes a lighting part including at least one LED module, an image sensor part converting an image, which is input from an outside, into a color signal and measuring illuminance by using the converted color signal, and a controller adjusting brightness of the lighting part based on information of the illuminance received from the image sensor.