Coded data generation or conversion – Bodily actuated code generator – Including keyboard or keypad
Patent
1998-01-09
2000-02-29
Horabik, Michael
Coded data generation or conversion
Bodily actuated code generator
Including keyboard or keypad
341126, 359142, 345168, 4551512, H04B 1000
Patent
active
060314702
ABSTRACT:
An IR keyboard 1 generates key code information corresponding to key operated to add break flag information indicating distinction between in-operation and operation release to the key code information as operation status information of the key to add terminator code information indicating that the key code information corresponding to key operation every once is completed to the last portion of the key code information to transmit, as key operation information, the key code information, the break flag information and the key code information by an infrared ray signal from a light emitting unit 11. Further, a light receiving unit 2 receives the infrared ray signal transmitted from the light emitting unit 11 to input key operation information of the IR keyboard 1 to a computer unit 3. At the light receiving unit 2, a control is conducted such that in the case where receive signal is ceased to be received in the state where break flag information added to key code information included in the infrared ray signal transmitted from the light emitting unit 11 of the IR keyboard 1 indicates that the key is being operated, when clocking operation starts from the time point of occurrence of fault and a receive signal can be obtained within a predetermined time, the receive signal is considered to be continuously received.
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patent: 5861822 (1999-01-01), Park
Asari Naosuke
Ishigaki Masanori
Takashima Koji
Ueki Toshihisa
Frommer William S.
Horabik Michael
Sony Corporation
Sony-Kihara Research Center, Inc.
Wong Albert K.
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