Abstract: A robot for marking an encoded surface is provided. The encoded surface has coded data identifying a plurality of locations thereon. The robot has an image sensor for sensing the coded data, and a processor for generating indicating data using the coded data sensed by the image sensor. The indicating data has data regarding a position of the robot on the encoded surface. The robot uses a communication means to transmit the indicating data to a computer system and receiving instructions from the computer system. A steerable drive system moves the robot over the encoded surface in response to movement instructions received from the computer system and a marking device selectively marks the encoded surface in response to marking instructions received from the computer system.

Abstract: A robot is provided which is adapted to operate in association with an interface surface, which has disposed therein or thereon coded data indicative of an identity of the interface surface and of a plurality of reference points of the interface surface. The robot has movement means to allow the robot to move over the interface surface, a sensing device which senses at least some of the coded data and generates indicating data indicative of the identity of the interface surface and of a position of the robot on the interface surface, and communication means to transmit the indicating data to a computer system, which is programmed to select and execute a computer application based on at least the identity of the interface surface, and to receive movement instructions from the selected computer application. The behaviour of the robot is at least in part controlled by the selected computer application.

Abstract: A robot for marking an interface surface is provided. The interface surface has coded data identifying a plurality of locations on the interface surface printed thereon. The robot comprises: an image sensor for sensing at least some of the coded data; a processor for generating indicating data using the sensed coded data, the indicating data comprising data regarding a position of the robot on the interface surface; communication means for transmitting the indicating data to a computer system and receiving instructions from the computer system; a steerable drive system for moving the robot over the interface surface in response to movement instructions received from the computer system; and a marking device for selectively marking the interface surface in response to marking instructions received from the computer system.

Abstract: A method (1600) and apparatus (220) for encoding a sequence of images for transmission over a communication network is disclosed. Initially (1602) an object-based first image is rendered from a computer graphics application (240). The rendered first image is then (1604) encoded (226) according to a predetermined encoding scheme and transmitted (1606) for remote display (116). A test (1608) is then performed to determine if any more images are to be rendered. If so, the next (further) image is rendered (1612) from the computer graphics application (240). Changes between the first image and the further image are then determined (1614) from a change indicating output (244,246) of the computer graphics application (240). The identified changes are then used (1616) to determine a manner in which the further image is to be encoded according to the predetermined format. The further image is then encoded (1618) based upon the changes, and transmitted (1620) for remote display.

Abstract: A robot adapted to operate in association with an interface surface having disposed therein or thereon coded data indicative of a plurality of reference points of the interface surface, the robot comprising: movement means to allow the robot to move over the interface surface; a sensing device which senses at least some of the coded data and generates indicating data indicative of a position of the robot on the interface surface; communication means to transmit the indicating data to a computer system running a computer application, and to receive movement instructions from the computer application; and, a marking device adapted to selectively mark the interface surface in response to marking instructions received from the computer application.

Abstract: A scanning device for scanning coded data indicative of a plurality of locations disposed on a surface is provided. The device generates interaction data based on the sensed coded data. The scanning device comprises a laser source for exposing a coded data portion, a photodetector, an analog to digital converter, a framestore, an image processor and a host processor.

Abstract: A customizable data filter system is disclosed, that is adapted to reduce the dimension of a searchable data base (100), and to enable performance of a database search and/or a data item selection, in relation to the reduced search space. The system comprises a Portable Customizable data Filter and Interface (PCFI) (204) storing at least a base data filter parameter, and able to provide a user interface by means of user selectable icons. The system also comprises a reader (210) for the PCFI (204), and database processing means (214) responsive to the data filter parameter and a user icon selection, wherein the reduced search space is defined by the filter parameter, and the database search and/or the data item selection is performed using the selectable icons.

Abstract: A monolithic image sensing device including an image processor, the integrated circuit being configured to operate in a system having a host processor, the image processor being configured to receive, from the host processor, a request for access to a next available frame of image data from a framestore; in the event the frame of image data is available, sending a message to the host processor indicative of the image data's availability; and in the event the frame of image data is not available, waiting until it is available and then sending a message to the host processor indicative of the image data's availability.

Abstract: A monolithic image sensing device, including an image sensor for sensing image data; timing circuitry for generating at least one internal timing signal, the image sensor being responsive to at least one of the internal timing signals to at least commence sensing of the image data; and at least one external timing signal; at least one external pin for supplying the at least one external timing signal to at least one peripheral device.

Abstract: A monolithic integrated circuit for use in a system having a host processor, the integrated circuit including at least one input pin for receiving command data from the host processor; at least one output pin for transmitting processed image data to the host processor in response to the command data; and an image processor configured to generate the processed image data by performing an image-processing function on image data captured by an image sensor.

Abstract: A monolithic integrated circuit comprising an image sensor for sensing image information; at least one analog to digital converter for converting analog signals corresponding to the image information into digital image data; and an image processor, the image processor including a range expansion circuit for range expanding the digital image data.

Abstract: A photodetecting circuit comprising a photodetector for generating a signal in response to incident light; a storage node having first and second node terminals, the first node terminal being connected to the photodetector to receive the signal such that charge stored in the node changes during an integration period of the photodetecting circuit; and an output circuit for generating an output signal during a read period of the photodetecting circuit, the output signal being at least partially based on a voltage at the first terminal; the photodetecting circuit being configured to receive a reset signal; integrate charge in the storage node during an integration period following receipt of the reset signal; and receive a compensation signal at the second terminal of the storage node at least during the read period, the compensation signal increasing the voltage at the first terminal whilst the output circuit generates the output signal.

Abstract: A monolithic integrated circuit including an image sensor for capturing image information; at least one analog to digital convertor for converting analog signals corresponding to the image information into digital image data; and an image processor, the image processor including a low-pass filter for filtering the image data, thereby to generate filtered image data.

Abstract: A monolithic integrated circuit including an image sensor for capturing image information; at least one analog to digital converter for converting analog signals corresponding to the image information into digital image data; and a first framestore for storing frames of the digital image data.

Abstract: A monolithic integrated circuit comprising an image processor configured to make each of a series of frames of image data available to a host processor, the image processor being configured to receive a first message from the host processor indicative of the host processor not requiring further access to the image data prior to a subsequent frame synchronisation signal; in response to the first message, causing at least part of the integrated circuit to enter a low power mode; and in response to a frame synchronisation signal, cause the part of the integrated circuit in the low power mode to exit the low power mode.

Abstract: Disclosed is a smart card device having a surface onto which are formed a plurality of user interpretable icons and electronic apparatus attached to the card portion. The electronic apparatus includes a memory in which are retained at least a plurality of character strings each associated with a corresponding one of the icons, a processor means coupled to the memory means, and communication means for coupling the processor means to a reading device configured to facilitate reading of the secure access device. The processor means is configured to relate reading signals generated from a user selection of at least one of the icons and received via the communication means with at least one of the retained character strings to thus perform a secure access checking function for enabling or rejecting user access to a desired service.

Abstract: A sensing device for: sensing coded data disposed on a surface; and generating interaction data based on the sensed coded data, the interaction data being indicative of interaction of the sensing device with the surface; the sensing device comprising:

Abstract: A scanning device for: scanning coded data disposed on a surface; and generating interaction data based on the sensed coded data, the interaction data being indicative of interaction of the scanning device with the surface; the coded data including, at a plurality of locations on the interface surface, a corresponding plurality of coded data portions, the scanning device comprising:

Abstract: A robot adapted to operate in association with an interface surface having disposed therein or thereon coded data indicative of an identity of the interface surface and of a plurality of reference points of the interface surface, the robot comprising:

Abstract: A robot adapted to operate in association with an interface surface having disposed therein or thereon coded data indicative of a plurality of reference points of the interface surface, the robot comprising: