Chord entry keying of data fields
First Claim
1. A keyboard system having a plurality of data keys and function keys arranged in a manner to be operated by one or both hands, and logic means permitting chord entry keying of characters into the keyboard upon substantially simultaneous depression of more than one key of the keyboard wherein data is entered upon depression of one or more data keys and upon depression of a function key within a predetermined time frame prior to or after the depression of the last data key.
1 Assignment
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Accused Products
Abstract
A keyboard system for chord entry keying of alphanumeric data fields includes decoding logic permitting substantially or near-simultaneous depression of numeric or alpha data keys and entry or function keys. The logic provides a decoding algorithm for resolving simultaneous entries by utilizing one or another rule of time of key depression. Depression of a numeric or alpha key within 60 milliseconds of an entry key is permitted for decoding of the data as the last key of the current data field. In a time frame between 60 and 100 milliseconds, a warning tone is received for purposes of verifying the last data field entry and to allow the operator to monitor timing performance.
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Citations
12 Claims
- 1. A keyboard system having a plurality of data keys and function keys arranged in a manner to be operated by one or both hands, and logic means permitting chord entry keying of characters into the keyboard upon substantially simultaneous depression of more than one key of the keyboard wherein data is entered upon depression of one or more data keys and upon depression of a function key within a predetermined time frame prior to or after the depression of the last data key.
- 5. A keyboard arrangement for use in chord entry keying of data fields and having a plurality of data keys and function keys, the arrangement including logic means for controlling the keying of characters into the keyboard upon substantially simultaneous depression of more than one key of the keyboard whereupon data is transmitted and entered upon depression of one or more data keys and upon depression of a function key within a predetermined time frame prior to or after the depression of the last key transmitting data for reducing the time of transmitting and entering said data.
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10. A method of reducing the time of transmitting and entering data in a keyboard having data keys and function keys comprising the steps of:
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depressing one or more keys for transmitting data from a field of data, depressing a function key for entering the data at substantially the same time as depressing the last key of the data keys, and determining that the field of data is transmitted and entered into the keyboard whenever the last key of the data field is depressed within a predetermined period of time prior to or after the depression of the function key. - View Dependent Claims (11)
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12. A process for chord entry keying of a field of data in a keyboard having a plurality of data keys and function keys comprising the steps of:
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depressing one or more data keys for transmitting data from the field of data, scanning the data keys for determining last key depression thereof, depressing a function key substantially simultaneously with depression of the last data key, and determining that the field of data is entered in the keyboard whenever the last key of the data field is depressed within a predetermined period of time prior to or after the depression of the function key for reducing the time of entering the field of data.
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Specification