초록 ▼

The invention concerns a method and apparatus that provides predetermined and user determined areas on an electronic whiteboard which provides the user with various computer-related functions. In particular, a communication server would monitor the hot zones for detection of the users electronic pen

The invention concerns a method and apparatus that provides predetermined and user determined areas on an electronic whiteboard which provides the user with various computer-related functions. In particular, a communication server would monitor the hot zones for detection of the users electronic pen. If the communication server detects the users electronic pen in the hot zone area for longer than a predetermined time, for example two seconds, then the communication server would perform the function defined by that particular hot zone. A plurality of hot zones may be defined and fixed as part of either the electronic whiteboard environment, or they may be relative so that a user can define particular hot zone areas, including their location, content and function. These hot zone areas may be moved anywhere in the electronic whiteboard area. The user is required to calibrate, or align the area of the electronic whiteboard in which they wish to define the hot zone, and the communication server will then monitor that area for pen activity. Furthermore, the hot zones may be configured so that the user of the electronic whiteboard may selectively send board images to remote users along with e-mail messages, tasking lists, calendars or scheduling information concerning future meetings, etc.

대표청구항 ▼

The invention concerns a method and apparatus that provides predetermined and user determined areas on an electronic whiteboard which provides the user with various computer-related functions. In particular, a communication server would monitor the hot zones for detection of the users electronic pen

The invention concerns a method and apparatus that provides predetermined and user determined areas on an electronic whiteboard which provides the user with various computer-related functions. In particular, a communication server would monitor the hot zones for detection of the users electronic pen. If the communication server detects the users electronic pen in the hot zone area for longer than a predetermined time, for example two seconds, then the communication server would perform the function defined by that particular hot zone. A plurality of hot zones may be defined and fixed as part of either the electronic whiteboard environment, or they may be relative so that a user can define particular hot zone areas, including their location, content and function. These hot zone areas may be moved anywhere in the electronic whiteboard area. The user is required to calibrate, or align the area of the electronic whiteboard in which they wish to define the hot zone, and the communication server will then monitor that area for pen activity. Furthermore, the hot zones may be configured so that the user of the electronic whiteboard may selectively send board images to remote users along with e-mail messages, tasking lists, calendars or scheduling information concerning future meetings, etc. ster as defined in claim 3, wherein the duty ratio of each of the M kinds of clock signals is preferably set to not more than (100×1/M)%.5. The shift register as defined in claim 2, wherein the flip-flop on each of the stages is a set-reset type flip-flop, and an output pulse of a (I+k×M)-numbered stage (k≧1) is inputted to a reset terminal of a flip-flop on an i-numbered stage.6. The shift register as defined in claim 2, wherein the flip-flop on each of the stages is a set-reset type flip-flop, and an output signal of a flip-flop on a (I+k×M)-numbered stage (k≧1) of the plural stages is inputted to a reset terminal of a flip-flop on an i-numbered stage.7. The shift register as defined in claim 1, further comprising:an input stabilizing section for stabilizing an input to each of the flip-flops on the plural stages which the switching means is opened.8. The shift register as defined in claim 7, wherein the flip-flop on each of the stages is a set-reset type flip-flop, and an output pulse of a (I+k×M)-numbered stage (k≧1) is inputted to a reset terminal of a flip-flop on an i-numbered stage.9. The shift register as defined in claim 7, wherein the flip-flop on each of the stages is a set-reset type flip-flop, and an output signal of a flip-flop on a (I+k×M)-numbered stage (k≧1) of the plural stages is inputted to a reset terminal of a flip-flop on an i-numbered stage.10. An image display device comprising: a display section constituted by a plurality of pixels arranged in a matrix format;a data signal line driving circuit, connected to a plurality of data signal lines, for supplying to the respective data signal lines image data to be written in the pixels; anda scanning signal line driving circuit, connected to a plurality of scanning signal lines, for supplying to the scanning signal lines a scanning signal for controlling a writing operation of the image data to the pixels,wherein the shift register as defined inclaim 1 is installed at least in either the data signal line driving circuit or the scanning,signal line driving circuit.11. The image display device as defined in claim 10, wherein at least either the data signal line driving circuit or the scanning signal line driving circuit is formed on a substrate on which the pixels are formed.12. The image display device as defined in claim 10, wherein a switching element constituting at least either the data signal line driving circuit or the scanning signal line driving circuit is a polycrystal silicon thin-film transistor.13. The image display device as defined in claim 12, wherein the switching element is formed at a temperature of not more than 600° C.14. A shift register comprising: flip-flops of a plurality of stages that operate in synchronism with clock signals; andlevel shifters for voltage-raising the clock signals to be inputted to the flip-flops on a plurality of stages,wherein: the level shifter is installed in each of the flip-flops on a plurality of stages, and supposing that n is an integer not less than 1, in accordance with the output signal of the flip-flop on the n-numbered stage, a pulse that is voltage-raised with the same width of the pulse width of the clock signal by the level shifter on a (n+1)-numbered stage is inputted to the flip-flop on the (n+1)-numbered stage, and is also outputted as an output signal of the shift register.15. The shift register as defined in claim 14, wherein each of the level shifter is provided with a current-driving type voltage-raising section.16. The shift register as defined in claim 15, wherein the output signal of the flip-flop on a n-numbered stage is inputted to the voltage-raising section of the level shifter on a (n+1)-numbered stage so that the corresponding level shifter is stopped by applying a signal having a level so as to cut off the input switching e