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Upon execution of the command, the Interface sends a response packet back to the host processor containing both an error code and arguments, if appropriate. Upon satisfactory system initialization, the main processing loop then enters into a command dispatching loop which polls both the host processor interface and the Procedure queue for any commands awaiting execution. Pen or Pointer Region [1] Group: Indices for this table are implementation dependent and are chosen as the value sixteen in each dimension which represents a compromise between available memory, processing speed and the maximum number of regions supported. The method of claim 41 wherein the definition of each regional coordinate system is received from the second program and the second program is an application program. The BIU 32 is responsible for decoding the address and control signals from the host processor and channels data from the PIO 30 onto or off of the host data bus User manual Hitachi Software Utilities Version 1.

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The ability to define a local, regional coordinate system facilitated using a drawing region without requiring any specialized programming knowledge or device specific attributes. Region 5 through Region 8 – will be created within the tablet coordinate system see Listing 1 for the specific bounding areas of each but will neither output coordinate data nor events.

Method and system for providing hot plug of adapter cards in an expanded slot environment. If it is set, the second in most-significant bit is then checked to determine whether the remaining packet words constitute an event or command response packet.

Czlcomp, in general, the following applies: It should be noted that the entire example template presented consists of 71 Interface commands comprising bit words.

The tablet area also known as the Active Area is labeled and enclosed within the device area Once created, a regional coordinate system may be scaled by changing the extents or resolution, transformed by moving the origin or rotated by specifying a counter-clockwise rotation factor in degrees. Method and apparatus for single source entry of analog and digital data into a computer.

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In the preferred embodiment, the method chosen utilizes a hybrid of two such methods involving both a hash-table and sequential list search. The method of claim 29 wherein the definition of a regional coordinate system is received from the second program and the second program is an application program.

Upon satisfactory system initialization, the main processing loop then enters into a command dispatching loop which polls both the host processor interface and the Procedure queue for any commands awaiting execution.

USB1 – Digitizer interface – Google Patents

Closes the Calckmp Procedure for the region addressed. Indices for this table are implementation dependent and are chosen as the value sixteen in each dimension which represents a compromise between available memory, processing speed and the maximum number of regions supported.

This is utilized by connecting the microprocessor’s 38 reset pin to the PIO, the purpose of which is discussed further on. US USA en Invalid commands result in an error which is subsequently returned to the host processor without any further execution. Collectively, these three segments facilitate the input, translation and subsequent output of modified digitizer coordinates within the framework of the Interface.

A computer readable medium containing a computer program which program causes a caocomp to perform the method of claim The device layer 6 represents the physical device or digitizer whose properties are established at the time of manufacture.

As such, the are not defined in terms of a local or regional coordinate system, but execute their Stored Procedures upon activation or the release of button 1i.

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This means, for example, that before a macro can be replayed it must be opened and ended. The button states are then modified to reflect the release of buttons since few digitizers report this information directly. These commands will create the desired template menuing system for any digitizer that supports the Interface regardless of digitizer type or host processor system.

Macros record and play 2310 only within regions which: Each of these regions may possess various attributes which collectively permit the specification of individual coordinate systems or stored sequences of commands. Tablet resolution changed successfully, device not open, tablet not open, one or more regions defined or maximum tablet extents exceeded. Macros are used to record user-generated events such as button presses and releases or the movement of the cursor within a region for which a Stored Procedure has not been defined.

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Since digitizers vary greatly both in terms of physical characteristics and output formats, the device layer provides the first level of abstraction by translating both the formats and physical characteristics into a device-independent format internal to the Interface. The coordinate values are further modified with the presence of the X and Y sign bits bits 13 and 12 in the event word if the coordinates are negative.

In order to demonstrate the flow of events within the sample application template, four event scenarios will be examined: This is accomplished by connecting the data inputs of flip-flops – pins D 0 through D 7 and data outputs of flip-flops – pins Q 0 through Q 7 to the 8-bit data bus of the microprocessor 38 labelled D[ 0. Regional coordinate systems 16 also referred to as local coordinate systems are the most powerful and versatile coordinate systems supported by the Interface and may be scaled 20transformed 22 or rotated Moves an existing region in the tablet coordinate system to the rectangle contained in packet words 3 through 6which comprise two points in tablet coordinates: Static ram 42 addressing is provided by the latched lower 8 bits 78 from the transparent latch 40 and direct connection to the high-order address bits 80 from the microprocessor A digitizer including a digital memory containing a computer program which program causes a microprocessor within the digitizer to perform the method of claim 3.

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