Surveying instrument
AssigneeAsahi Kogaku Kogyo Kabushiki Kaisha
InventorKiyoshi Yamamoto
Life of this patent
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Abstract
A surveying instrument including an operating portion having a number of keys including specific keys which are assigned specific functions, an indicator which produces an indication corresponding to the specific keys, an indication mode switching device which changes the indication from a first indication mode to a second indication mode when one specific key is actuated once, and a controller which performs the specific function only when the associated key is actuated in accordance with a predetermined operation pattern during the indication of the function at the second indication mode.
Claims13
A surveying instrument comprising:
- an operating portion having a number of keys including at least one specific key assigned to a specific function;
- an indicating means for producing an indication corresponding to said specific key;
- a first indication mode switching means for changing said indication from a first indication mode to a second indication mode upon said specific key being actuated once, the necessity for a second operation of said at least one specific key being visually indicated during a predetermined time limit;
- a second indication mode switching means for changing said indication from said second indication mode to said first indication mode after said predetermined time limit has elapsed;
- and
- a function performing means for performing said specific function if said specific key is actuated a second time within said predetermined time limit;
- wherein said indication mode changes from said second indication mode to said first indication mode upon said specific key being actuated a second time.
A surveying instrument comprising:
- at least one key assigned to a specific function;
- an indicating means for producing an indication corresponding to said key;
- an indication mode switching means for switching said indication from a first indication mode to a second indication mode when said key is actuated once;
- and,
- a function performing means for performing said function only when said key is actuated a second time when said indicating means gives indication of said function at said second indication mode.
Dependencies are inferred from the claim text.