Canon Kabushiki Kaisha

Shigehiro Kadota

Yoji Furuya

Hiroo Teraichi

Hideyuki Kobayashi

Michihei Murayama

Naoshi Inoue

Toshio Sugino

Kenichiro Sugiura

Kazuyuki Shigeta

Akihiro Ouchi

Hiroto Yasumura

Minoru Noji

Masanao Yasuda

Toshinori Hirobe

Keiichiro Ishihara

Atsushi Nakamura

Akihiro Matsushita

Akihiko Hamamoto

Mutsumi Miyata

A display system and display control method for displaying an image based upon image data supplied from an image supply device or external storage unit. Information indicating whether editing of image data is allowed or not is appended to an image, the information is discriminated and display areas of images corresponding to the image data are displayed on a screen upon making the display areas appear different from each other in accordance with the information discriminated.

Display system and method of controlling same

An optical scanning apparatus in which keystone distortion non-linearity distortion in a projected image can be excellently corrected is provided. An optical scanning apparatus has light source means and deflecting means for deflecting a light beam emitted from the light source means two-dimensionally in a first direction and a second directrion, the deflection speed of the deflecting means being higher in the first direction than in the second direction. The deflecting means is driven in such a way that its angular velocity in the second direction is smaller when optically scanning a position on the surface to be scanned at which the angle of incidence of the deflected light beam in the second direction is larger than when optically scanning a position on said surface to be scanned at which the angle of incidence of the deflected light beam in said second direction is small.

Optical scanning apparatus and scanning image display apparatus

An image display apparatus connected in a communication-enable manner to an information processing unit for processing image data and outputting an image signal, wherein the image display apparatus receives the image signal and displays an image. The image display apparatus comprises an on-screen display generating unit for generating the image, a coordinate input unit for providing position information based on pointing on a display screen, and a control unit for controlling the on-screen display generating unit to generate and display a scroll bar, and controlling the image signal output from the information processing unit in accordance with an input for an area of the scroll bar from the coordinate input unit.

Image display apparatus, method and program

In an information processing apparatus which is connected to an external terminal having an input unit via a network, can receive an input from the input unit of the external terminal, and has its own input unit, an exclusion manager () monitors an input from the input unit of the external terminal and that from the self input unit. As a result of monitoring, if an input from a given input unit is generated, the exclusion manager executes exclusion control that inhibits an input from the other input unit until that input is completed.

Information processing apparatus, its control method, and program

In a multidisplay system, an image is displayed without necessitating a display control signal supplied from an external device. Each image display device in the multidisplay system includes an interface for receiving image data and transferring the image data to an image display device at a downstream location. Each image display device also includes a DDC (Display Data Channel) communication processor and a rewritable memory for storing EDID (Extended Display Identification Data) information. When another image display device is connected at a downstream location, EDID information is acquired from the connected image display device via the DDC communication processor, and display resolution information and interconnection information are set. In particular, the display resolution described in the EDID information is rewritten by the display resolution information set in the above process.

Display apparatus, method of controlling the same, and multidisplay system

There are provided an image display apparatus and method, which are capable of improving the operability of a white board function thereof, and allowing different devices to be operated on the same screen in a unified manner, and an information processing apparatus having the image display apparatus, and a storage medium storing a program for implementing the method. A control signal input device inputs a control signal. An operation signal output device outputs an operation signal to an external signal source. A memory section stores display screen information. A control signal switching section selectively switches use of the control signal from the control signal input device between a control signal for the display screen information stored in the memory device and the operation signal to be outputted from said operation signal output device.

Image display apparatus and method, information processing apparatus using the image display apparatus, and storage medium

The present invention provides a projection apparatus utilizing plural light sources, in which the light source principally irradiating the light valve is switched by moving the relative position between the plural light sources and the mirror for guiding the lights outputted from such light source to the light valve. Also the configuration can be simplified by using commonly the light condensing device for the plural light sources.

Projection apparatus

Coordinate data input apparatus, coordinate data input method, and storage medium storing coordinate information input program

A multifunctional information processing apparatus includes a selection unit consisting of a CRT display and a touch panel, for selecting a desired function of a plurality of executable functions, a plurality of function programs for executing different functions, respectively, a memory for storing data formed upon execution of the function program selected by the selecting unit so as to allow subsequent use of the data by other function programs, and a CPU for controlling to cause another function program selected by the selecting unit to utilize the data stored in the memory.

Multifunctional apparatus with selectable functions and a common printer

A multifunctional information processing apparatus includes a selection unit consisting of a CRT display and a touch panel, for selecting a desired function of a plurality of executable functions, a plurality of function programs for executing different functions, respectively, a memory for storing data formed upon execution of the function program selected by the selecting unit so as to allow subsequent use of the data by other function programs, and a CPU for causing another function program selected by the selecting unit to utilize the data stored in the memory.

Multifunctional information processing apparatus

An information processing apparatus according to the present invention stores suspension data in a non-volatile storage and performs a 0 V suspension process by which are turned off all power sources of the apparatus. An active suspension process is performed, by which are turned off power sources of the apparatus, excluding a power source that supplies power to the volatile storage. The 0 V suspension process is performed when a power supply voltage level is lower than a predetermined value, while the active suspension process is performed when that voltage level is higher than the predetermined level. The apparatus also predicts a processing time for a transfer unit and a power characteristic for a second storage unit. In addition, remaining power is detected using a reference value that is set at a first predetermined value in accordance with results obtained from the two predictions. The apparatus also has a storage unit that includes expanded memory areas, which are acquired by dividing available space into a plurality of blocks, and an expanded memory system, which has a plurality of page frames that are assigned to the blocks, and manages correspondence between the blocks and the page frames.

Suspension state control for information processing devices such as

An information processing apparatus includes: a unit for displaying on a screen a musical score, keyboard and tone time information to be inputted; a unit for designating the position of the keyboard, and tone time information, respectively displayed on the display unit; a unit for storing musical information produced through designation by the designating unit of the position of the keyboard and tone time information displayed on the display unit; a unit for controlling the display of the musical score, keyboard and tone time information on the screen of the display unit, and for controlling the display of a pattern of musical tone or rest on the musical score on the display unit in accordance with the position of the keyboard and tone time information respectively designated by the designating unit; and a unit for generating a musical tone by reading the musical information stored in the storage unit.

Multifunction musical information processing apparatus

A personal computer system with communication function, in which the operating mode is automatically controlled by a tone signal transmitted through a communication channel.

Growing community of inventors

Tokyo, Japan

Shigehiro Kadota