A management device includes a distance sensor, a sensor interface, and a processor. The distance sensor is configured to measure a distance between a predetermined position and a backmost side of a commodity line having commodities biased in an arrangement direction and supported from a foremost side of the commodity line. The sensor interface transmits and receives data to and from the distance sensor. The processor calculates a length of the commodity line based on the distance before a change in the distance and the distance after the change in the distance when the distance is changed, and determines whether the length of the commodity line matches a thickness of the commodity indicated by shelf label information. The processor calculates the increased or decreased number of commodities based on the determination.

A management device includes a distance sensor, a sensor interface, and a processor. The distance sensor is configured to measure a distance between a predetermined position and a backmost side of a commodity line having commodities biased in an arrangement direction and supported from a foremost side of the commodity line. The sensor interface transmits and receives data to and from the distance sensor. The processor calculates a length of the commodity line based on the distance before a change in the distance and the distance after the change in the distance when the distance is changed, and determines whether the length of the commodity line matches a thickness of the commodity indicated by shelf label information. The processor calculates the increased or decreased number of commodities based on the determination.

A control device, an external device, a medical observation system, a control method, a display method, and a program capable of performing predetermined processing to a position desired by an operator even under a situation where the operator's hand is not available. A control device includes: an image processing unit that processes an image signal generated by an imaging unit to generate a display image for display; a transmission/reception unit that transmits the display image generated by the image processing unit to a display device and an external device, which has a display function and is capable of bidirectional communication and receives an instruction signal including at least a position of the display image transmitted from the external device; and a control unit that executes predetermined processing on a touch position of the display image according to the instruction signal from the external device.

A control device, an external device, a medical observation system, a control method, a display method, and a program capable of performing predetermined processing to a position desired by an operator even under a situation where the operator's hand is not available. A control device includes: an image processing unit that processes an image signal generated by an imaging unit to generate a display image for display; a transmission/reception unit that transmits the display image generated by the image processing unit to a display device and an external device, which has a display function and is capable of bidirectional communication and receives an instruction signal including at least a position of the display image transmitted from the external device; and a control unit that executes predetermined processing on a touch position of the display image according to the instruction signal from the external device.

A vehicle such as a motor car (V) equipped with a radio equipment (14) is provided with a rearview camera 5 (10). Video frames from the rearview camera (10) are received at the radio equipment (14) and transmitted to a mobile communication device (S) such as a smart phone equipped with a video screen (S1) so that video frames from the rearview camera (10) are displayed on the 10 video screen (S1) of the mobile communication device (S).

A vehicle such as a motor car (V) equipped with a radio equipment (14) is provided with a rearview camera 5 (10). Video frames from the rearview camera (10) are received at the radio equipment (14) and transmitted to a mobile communication device (S) such as a smart phone equipped with a video screen (S1) so that video frames from the rearview camera (10) are displayed on the 10 video screen (S1) of the mobile communication device (S).

A dual display regions control method includes establishing a link between a receiver and a first transmitter and a link between the receiver and a second transmitter, transmitting a first image signal to the first transmitter after the first transmitter is triggered, transmitting the first image signal to the receiver, transmitting a second image signal to the second transmitter after the second transmitter is triggered, transmitting the second image signal to the receiver, selecting the first transmitter from the first transmitter and the second transmitter, displaying the first image signal on a first display region through the receiver after the first transmitter is selected, and displaying identification data of the first transmitter and the second transmitter on a second display region through the receiver.

A dual display regions control method includes establishing a link between a receiver and a first transmitter and a link between the receiver and a second transmitter, transmitting a first image signal to the first transmitter after the first transmitter is triggered, transmitting the first image signal to the receiver, transmitting a second image signal to the second transmitter after the second transmitter is triggered, transmitting the second image signal to the receiver, selecting the first transmitter from the first transmitter and the second transmitter, displaying the first image signal on a first display region through the receiver after the first transmitter is selected, and displaying identification data of the first transmitter and the second transmitter on a second display region through the receiver.

An image forming apparatus includes a housing and a first process cartridge. The first process cartridge is attachable to and detachable from the housing. The first process cartridge includes a first photosensitive drum, a first developing roller, and a developing frame. The developing frame has a toner inlet opening. The toner cartridge has a toner supply opening. The toner cartridge is positioned above the developing frame such that the toner supply opening and the toner inlet opening face with each other in upward/downward direction. In the state where the first process cartridge to which the toner cartridge is attached is attached to the housing, the toner cartridge is incapable of being detached from the first process cartridge. In a state where the first process cartridge to which the toner cartridge is attached is detached from the housing, the toner cartridge is detachable from the first process cartridge.

An image forming apparatus includes a housing and a first process cartridge. The first process cartridge is attachable to and detachable from the housing. The first process cartridge includes a first photosensitive drum, a first developing roller, and a developing frame. The developing frame has a toner inlet opening. The toner cartridge has a toner supply opening. The toner cartridge is positioned above the developing frame such that the toner supply opening and the toner inlet opening face with each other in upward/downward direction. In the state where the first process cartridge to which the toner cartridge is attached is attached to the housing, the toner cartridge is incapable of being detached from the first process cartridge. In a state where the first process cartridge to which the toner cartridge is attached is detached from the housing, the toner cartridge is detachable from the first process cartridge.