Rotary switch memory for digital multimeter
First Claim
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1. A digital multimeter, comprising:
- a rotary switch having a plurality of positions, wherein each of the positions is associated with a corresponding default primary measurement function and at least one of the positions is further associated with one or more non-default primary measurement functions;
a processor for modifying an active primary measurement function associated with a particular position of the rotary switch, from (i) a default primary measurement function to a non-default primary measurement function, (ii) a non-default primary measurement function to a default primary measurement function, or (iii) a first non-default primary measurement function to a second non-default primary measurement function; and
a rotary switch memory for storing modifications to an indication of the active primary measurement function;
wherein, when the rotary switch is rotated away from and then back to the particular position, the processor retrieves the active primary measurement function from the rotary switch memory and causes the multimeter to perform the active primary measurement function.
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Abstract
A digital multimeter comprises a rotary switch and a rotary switch memory. The rotary switch can be moved between a plurality of positions to change the function performed by the digital multimeter. When the rotary switch is in a particular position, a user can change the function currently associated with that position from a default function to a non-default function. Thereafter, when the user moves the rotary switch away from the particular and then subsequently moves the position back to the particular position, the multimeter resumes the non-default function without requiring further user-input.
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Citations
17 Claims
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1. A digital multimeter, comprising:
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a rotary switch having a plurality of positions, wherein each of the positions is associated with a corresponding default primary measurement function and at least one of the positions is further associated with one or more non-default primary measurement functions; a processor for modifying an active primary measurement function associated with a particular position of the rotary switch, from (i) a default primary measurement function to a non-default primary measurement function, (ii) a non-default primary measurement function to a default primary measurement function, or (iii) a first non-default primary measurement function to a second non-default primary measurement function; and a rotary switch memory for storing modifications to an indication of the active primary measurement function; wherein, when the rotary switch is rotated away from and then back to the particular position, the processor retrieves the active primary measurement function from the rotary switch memory and causes the multimeter to perform the active primary measurement function. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10)
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11. A method of modifying a function associated with a position of a rotary switch of a digital multimeter comprising a rotary switch having a plurality of positions, a processor, and a rotary switch memory, the method comprising:
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receiving user input indicating that a position on the rotary switch should be modified from a first primary measurement function to a second primary measurement function; storing in the rotary switch memory modifications from the first primary measurement function to the second primary measurement function; wherein, in response to user input rotating the rotary switch away from and then back to a particular position, the processor causes the rotary switch memory to store and perform the modified primary user function. - View Dependent Claims (12, 13, 14, 15, 16, 17)
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Specification