摘要:
There is provided a liquid crystal display drive method that uses a drive voltage waveform consisting of a display signal period (display waveform 32 bits) and a control signal period irrelevant to display (control waveform 2 bits) in a given time or a period of plural frames or one frame. This method suppresses generation of internal DC voltage and thus prevents impurity ions from deteriorating the quality of displayed pictures.
摘要:
A data communication apparatus determines whether or not data are being transmitted, and receives the image data when data have been transmitted. Then, a plurality of address data of the sending side are obtained. Then, the obtained plurality of address data of the sending side are recorded in an address memory. Finally, the apparatus transmits its own plurality of address data to the obtained address of the sending side, and the reception process ends.
摘要:
A display apparatus is capable of performing a gradation display and a high-speed low-power-consumption display by controlling the colored state of each pixel to an appropriate state. A driving method for the display apparatus displays images through deposition and dissolution of a metal by impressing a predetermined voltage on each pixel. A voltage pulse or AC voltage having an amplitude of not more than a threshold for deposition of the metal is impressed, and a writing pulse or an erasing pulse is controlled according to the resultant current. Alternatively, an additional writing pulse is impressed when the current is lowered to or below a predetermined value, after the writing. Further, the state of the pixel is detected through the current, and a rewriting operation is selected according to the detected state.
摘要:
A portable terminal user uses a portable terminal so as to select data to be printed among data in a server as well as an MFP from which the data is to be printed out. The server creates authentication data and transmits the authentication data to the selected MFP. The MFP displays the authentication data. The portable terminal acquires the authentication data through picture taking, and transmits the acquired data to the server. The server compares the created authentication data with the data transmitted from the portable terminal. If they match, print data corresponding to the authentication data is transmitted to the MFP, whereby the MFP performs printing. With such a configuration, an image output system attaining excellent usability for the user and improved security can be provided.
摘要:
The data communication apparatus of the present invention includes a CPU, operation panel, reading unit, image memory for storing read image data, resolution converter for converting stored image data to an optional resolution, telephone communication unit for transmitting data over a telephone line, network communication unit for transmitting data over an internet line, and a printing unit. The resolution converter converts fine detail data to low detail data and sends the low detail data to the telephone communication unit when transmitting data over the telephone line. In this way data reception reliably occurs simultaneously with data transmission. Thereafter, when fine detail request data including resolution data are received over the telephone line, the data are converted to the desired resolution, and sent to the network communication unit. In this way the apparatus attains excellent operationality since fine detail data are transmitted only as necessary.
摘要:
When serial data 110, which includes synchronous data 110A and effective data 110B, is received, a hold signal 130 is set at “1” and the PLL control is stopped while the effective data 110B is being received. As a result, low-cost, high-speed data transmission can be realized. Here, when one frame is composed of a start bit, the synchronous data 110A, and the effective data 110B, when the serial data 110 is composed of a plurality of frames, and when the bit length of data that has been transmitted either between the rising edges or between the falling edges of the synchronous data of the consecutive frames is an integral multiply of the dividing ratio of a divided clock signal, phase synchronization by the PLL with minimum transmission period of the synchronous data can be realized. As a result, the efficiency of image data transmission can be improved.
摘要:
A portable celullar phone apparatus includes a portable cellular phone and an external adapter for a portable cellular phone. It is possible to suppress an increase in output power of a portable cellular phone transmit amplifier due to a loss at a transmit switch associated with use of an external transmitting antenna by coupling a first output of the transmit switch to a portable cellular phone transmit amplifier and coupling a second output of the transmit switch to an input of a transmit amplifier part of a portable cellular phone external adapter. Deterioration of a NF of a receiving system due to a loss at a receive switch when using an external receiving antenna may be reduced by coupling a first input of a receive switch to a portable cellular phone receive amplifier and coupling a second input of the receive switch to an output of a receive amplifier part of the portable cellular phone external adapter.
摘要:
In an image stabilizing apparatus in which an actuator for pivoting a gimbal suspension is driven under PWM control by way of a driving circuit, the pulse width of waveform outputted from a CPU to the driving circuit is enhanced when the power voltage Vp in the driving circuit drops. The CPU reads out the power voltage Vp and enhances the pulse width of output waveform from W1 to W2 as the power voltage Vp decreases from its rated voltage V1 to a lower voltage V2. The correction rate (W2/W1) is set to the reciprocal (V1/V2) of the drop rate of power voltage Vp, so as to yield an appropriate actuator driving power in response to the drop in power voltage Vp.
摘要:
A hierarchical coding apparatus comprising first and second compressive coding units for subjecting high- and low-resolution digital image signals to hierarchical coding to generate high- and low-resolution coded data, and a resolution conversion circuit for subjecting a portion of low-resolution decoded image signal obtained by decoding the low-resolution coded data to resolution conversion, wherein only the resolution converted image signal is used as a reference signal for a low resolution side in coding the high-resolution digital image signal, thereby making the reduction of compression efficiency of image data, which is transmitted or stored, less, and simplifying the configuration of the hierarchical coding apparatus.
摘要:
In an image stabilizing apparatus in which inner and outer gimbals are pivoted about two pivotal axes so as to fix an erect prism with respect to an inertial system, a torsion coil spring 240 is disposed to provide one-side stressing between the inner and outer gimbals 7, 107, so as to pivotally stress the inner gimbal 7 with respect to the outer gimbal 107 in one direction. When image stabilizing control is started, the elastic force of the torsion coil spring 240 instantly changes the angular position of the inner gimbal 7, so that a capacitor is charged earlier, thereby enhancing the response in PWM control.