摘要:
A method of compressing a digital ink input is disclosed. The digital ink includes a sequence of strokes, each stroke being represented as a series of digital words representing x and y co-ordinates, the compressed digital ink data including, for each stroke, at least one reference co-ordinate expressed in absolute terms, with subsequent co-ordinates being expressed in terms of an offset from a co-ordinate, estimated using linear prediction, such that a given co-ordinate may be determined on the basis of the previous m co-ordinates as formula (I); where c¿i
摘要:
A system is disclosed for playing prerecorded audio encoded in a fault tolerant manner as a series of infra-red ink dots printed along with a photographic image using an ink jet printing system, the system comprising an infra-red scanner for scanning the infra-red (IR) form of the prerecorded audio; a processor interconnected to the IR scanner for decoding the scanned audio encoding to produce a corresponding audio signal; and an audio emitter interconnected to the processor for emitting or playing the corresponding audio signal on demand. The encoding can include Reed-Solomon encoding of the prerecorded audio and can comprise an array of infrared ink dots which are high frequency modulated to aid scanning. The system can include a wand-like arm having a slot through which the photograph is inserted.
摘要:
A printhead assembly (90) includes a body (92) defining a seat for a printhead (10) and having a dividing member (100). A plurality of fluid storage galleries (102) is arranged on one side of the dividing member (100). A plurality of feed passages (108) is arranged on an opposed side of the dividing member (100), each feed passage (108) having a first end in communication with one of the galleries (102) and an opposed end opening out into the seat. A printhead (10) is mounted in the seat such that fluid fed from the galleries (102) is supplied to at least one printhead chip (26) of the printhead (10).
摘要:
A method of printing digital data onto or with a photograph using infra-red ink and using an ink jet printing process is disclosed. The data can store the details of the image in an encoded fault tolerant form enabling the copying or recovery of the photograph notwithstanding damage thereto.
摘要:
A laminated ink distribution structure for a printhead has a number of layers adhered to one another with each layer including a number of ink holes formed therethrough. Each ink hole has communicating therewith a channel formed in one side of the layer and allowing passage of ink to a transversely located position upon the layer, the transversely located position aligning with a slot formed through an adjacent layer of the laminate. The laminated ink distribution structure is fixed to a distribution housing via which different inks are conveyed from an ink cassette. The laminated structure distributes the different inks to an array of print chips of a colour printer.
摘要:
A method of configuring a printer for vacation periods is provided. The printer is connected to a network server and the method comprises switching the printer between a first operative mode, in which the network server transmits print data to the printer and the printer prints documents, and a second operative mode, in which the printer does not print documents and the network server stores data relating to pending print jobs which have not been printed. When the mode changes from the second mode to the first mode the network server retrieves or generates an electronic summary of the pending print jobs and causes the printer to print a printed summary corresponding to the electronic summary.
摘要:
The invention concerns design of thermoelastic actuators incorporating an expansive element formed from material selected in accordance with a procedure involving the derivation of an indicator of the material's potential effectiveness for each application. Indicator ε is derived from: εη=Eη2T/ςC where E is Young's modulus of the material, η is coefficient of thermal expansion, T is maximum operating temperature, ς is density and C is specific heat capacity. Elements may be selected from a group including: borides, carbides, nitrides or silicides of chromium, molybdenum, niobium, tantalum, titanium, tungsten, vanadium or zirconium.
摘要:
The present invention provides a method of modifying a classification scheme for classifying hand-written characters to thereby make the classification scheme user dependent. The classification scheme includes a number of allographs, each allograph representing a respective style of a respective letter. The method includes obtaining at least one hand-written character, and then selecting an allograph representing the character. One or more of the allographs are then modified in accordance with the selection, to thereby reflect the fact that the allograph corresponds to a style of letter used by the user.
摘要:
A tag encoder for producing tags to be incorporated into a printed page is disclosed. The tag encoder has an input to receive a tag structure template, an input to receive fixed data bits, an input to receive variable data bit records and a tag generator outputting single bits depending on the position in the tag defined by the tag structure template and the fixed and variable data bits. The encoder has a redundancy encoder which utilises Reed-Solomon encoding. The tag encoder is present in a printer. In addition to the tag encoder, the printer has a contone image decoder to decode compressed continuous tone image planes and a bi-level decoder to decode any compressed bi-level image plane in the compressed data. These decoded image planes are combined with the output of the tag encoder in a halftoner/compositor to produce a printed page carrying tagged areas. The tags are printed in ink which is invisible to the human eye. Such inks, could be IR or UV absorptive.
摘要:
A crystalline thin film structure formed by the deposition of a predominant first crystalline material in two or more layers interleaved by layers of a second crystalline material having a lattice constant that differs from the lattice constant of the predominant first crystalline material in order to disrupt the growth of columnar crystals in the predominant first crystalline material in order to reduce the differential stress profile through the thickness of the film structure relative to the differential stress profile of a crystalline thin film structure formed solely from the predominant first crystalline material.