Seiko Epson Corporation

Takeshi Furihata

Kunio Yoneno

Daisuke Kasahara

Hirokazu Kamatori

Shigehiro Yanase

Junichi Nakamura

Shoichi Uchiyama

Joji Karasawa

Kazunori Hiramatsu

Masafumi Sakaguchi

Hiroyuki Shindo

Takao Hirakura

Hiroshi Kamakura

Naoki Hayashi

Daisuke Yanagihara

Kei Miyazaki

A method of controlling a projector includes detecting whether a human is present or absent between a projection surface and the projector, emitting a first sound when it is detected that the human is present, determining whether or not detecting that the human is present continues during a first period having a first time length, projecting, by the projector, a first projection image including a first image on the projection surface when it is determined that the detecting that the human is present continues, and projecting, by the projector, a second projection image not including the first image on the projection surface when it is determined that the detecting that the human is present does not continue.

Method of controlling projector and projector

An image display device adapted to display an image includes a connection section to which an interface board replaceable is connected, and which communicates with an external device via the interface board, a failure detection section adapted to detect a failure of the interface board connected to the connection section, and a control section adapted to limit power supply to the interface board in a case in which the failure detection section has detected the failure of the interface board.

Image display device and method of controlling same

An image display apparatus includes a display unit that displays an image, a connection unit connected to a replaceable interface board and communicating with an external apparatus via the interface board; and a control unit that determines a type of the interface board connected to the connection unit and restricts power supply to the interface board based on the type of the interface board.

Image display apparatus and control method therefor

A display apparatus includes a plurality of input terminals capable of receiving image signals, a first display part showing whether or not the input terminal accepts the image signal with respect to each input terminal of the plurality of input terminals, an image display unit that displays an image according to the image signal received by a selected input terminal selected from the plurality of input terminals on a display surface, and a second display part showing the selected input terminal.

Display apparatus and control method for display apparatus

A projector including a light source, a power supply section, a power supply control section that controls power supply from the power supply section, a projection lens that projects an image, and a projection system driver that moves the projection lens, wherein the power supply control section performs, as power supply modes, an operation mode in which power is supplied to the light source section to allow the light source section to output light and a first standby mode in which the power supply to the light source section is terminated, and in the first standby mode, power is supplied to the projection system driver to allow the projection lens to move to an attachment/detachment position where the projection lens is attachable and detachable.

Projector and method for controlling projector

In at least one embodiment, a projection display device comprises a device main body, a shutter that opens and closes an opening for ventilation, and an electricity storage section that stores power from an external power source. If an interruption detecting section detects a power supply from the external power source is stopped and a time in which the power supply is stopped is longer than a predetermined time, the interruption detecting section detects that the external power source is interrupted. If the interruption of the external power source is detected, a control section performs a control to reduce a power consumption of the device main body and a control to drive the shutter so that the shutter is closed by the power supplied from the electricity storage section.

Projection display device and method for controlling the same

An image display device includes: a first audio signal input terminal to which a first audio signal is input from a microphone; and a control section adapted to control power supply from a power supply circuit to the microphone based on type information indicative of whether a type of the microphone to be connected to the first audio signal input terminal is a first type which is requiring power supply or a second type which is not requiring power supply.

Image display device and method of controlling the same

An image display apparatus includes: an HDBaseT receiver circuit that receives signals based on N (N is an integer number satisfying N&#x2267;2) standards that can be transmitted as HDBaseT signals; a dedicated receiver circuit that is compliant with only a first standard of the N standards and receives signals of the first standard; a signal processing unit that processes the signals received by the HDBaseT receiver circuit or the dedicated receiver circuit; and a circuit switching unit that switches an output target circuit that outputs the signals of the first standard to the signal processing unit to one of the HDBaseT receiver circuit and the dedicated receiver circuit.

Image display apparatus and method of controlling image display apparatus

An electricity storage section that stores power from an external power source and supplies the stored power as operating power is provided, and, when an interruption of the external power source to a projection display device is detected, control to reduce the power consumption of a device main body and control to drive an exhaust port shutter so that it is closed by the power supplied from the electricity storage section are performed.

A projector includes: a first audio input section adapted to input a first sound signal; a second audio input section adapted to input a second sound signal; a first sound amplifier section adapted to amplify the first sound signal received through the second audio input section to generate a first amplified signal; a second sound amplifier section adapted to amplify the second sound signal received through the second audio input section to generate a second amplified signal; a first audio output section adapted to output a first sound based on the first amplified signal; a second audio output section adapted to output a second sound based on the second amplified signal; and a determination section adapted to determine whether or not the first sound signal is being input.

Projector and audio output method

Aspects of the invention can provide a projector that can include a light source unit, an optical modulation element that modulates light from the light source unit on the basis of image data, a light adjusting unit that adjusts the amount of light incident on the light modulation element from the light source unit, and a control unit that controls the light modulation element and the light adjusting unit. The control unit can perform light adjustment control to adjust the amount of light according to a luminance distribution pattern of image data for the light adjusting unit and can perform correction control to correct display irregularity of image data based on the adjustment of the amount of light for the light modulation element.

Projector

An input device includes: a tapping sound detector configured to detect a tapping sound made by a user to generate a tapping sound detection signal; a converter configured to convert the tapping sound detection signal into an input operation signal; and an operation signal output device configured to output the input operation signal. The operation signal output device includes a wireless transmitter.

Input device using tapping sound detection

The present invention relates to a pointing position detection device that can automatically sense a pointing position within a display region. This pointing position detection device comprises a CCD camera acquiring an image of a display region in which an image has been displayed; a binary-data processing section for detecting a pointing position of a shadow region or an actual image region that is an image region of a pointing image included within an image-acquisition area, based on an image-acquisition signal of the CCD camera ; and a pointing coordinates detection section.

Growing community of inventors

Okaya, Japan

Takeshi Furihata