METHOD FOR STABILIZATION OF DIGITAL TRANSMITTING/RECEIVING DATA OF WIRELESS KEYBOARD

• Main Author: PARK, GYEONG EUN
• Format: Patent
• Language: English; Korean
• Published: 28.09.2002
• Edition: 7
• Subjects: BASIC ELECTRONIC CIRCUITRY; CALCULATING; CODE CONVERSION IN GENERAL; CODING; COMPUTING; COUNTING; DECODING; ELECTRIC COMMUNICATION TECHNIQUE; ELECTRIC DIGITAL DATA PROCESSING; ELECTRICITY; PHYSICS; TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHICCOMMUNICATION

PURPOSE: A method for a stabilization of digital transmitting/receiving data of a wireless keyboard is provided to transmit/receive data with safety by a time sharing method of data process of a receiving unit and a packet constitution of transmitting/receiving data and by a CRC(Cyclic Redundancy Check) check when data are transmitted/received between a keyboard and a personal computer by a wireless RF method. CONSTITUTION: A basic time(t0) for processing a repetitious job is fixed as 30ms. The basic time(t0) is divided into three portions of small time by 10ms. The divided time(t11,t12,t13) are allocated to a key scan, a data analysis, and a data transmission necessary therefor, respectively. The first divided time(t11) is allocated to a key scan(31) for searching a pressed key and a data transmission(33) for transmitting data of the pressed key. The second divided time(t12) is allocated to a key scan(41) for searching a pressed key and a data transmission(43) for transmitting data of the pressed key. The third divided time(t13) is allocated to a key scan(51) for searching a pressed key, a data analysis(55) for analyzing data of the pressed key, and a data transmission(53) for transmitting the analyzed data.