Electronic time and temperature measuring system

Claim 2

An electronic thermometer system having an operation interval including a temperature mode period during which a measured temperature is displayed and a time mode period during which a measured length of time is displayed, comprising: a temperature sensing circuit for providing an analog signal representative of variations in temperature; a temperature measuring circuit, responsive to said analog signal representative of variations in temperature provided by said temperature sensing circuit, for providing a digital signal representative of the temperature sensed; a timing and control circuit, responsive to said digital signal representative of the temperature sensed provided by said temperature measuring circuit, and defining an operation interval including a temperature mode period and a time mode period, for generating a signal representative of a predetermined length of time during said time mode period and for selectively presenting its output, said signal representative of said predetermined length of time during said time mode period and said digital signal representative of the temperature sensed during said temperature mode period; and a display circuit responsive to said output from said timing and control circuit for selectively displaying, during said temperature mode period, the measured temperature indicated by said digital signal representative of the temperature sensed and displaying, during said time mode period, the measured time indicated by said signal representative of said predetermined length of time.

Claim 3

The system of claim 1 in which said timing and control circuit includes a clock circuit, a timing network for defining said interval including a first timer for defining said time mode period and a second timer for defining said temperature mode period; a gating circuit responsive to said clock circuit and said first timer for passing said signal representative of said predetermined length of time during said time mode period and said digital signal representative of the temperature sensed during said temperature mode period; and a temperature count limit circuit, responsive to said first timer and said clock circuit, for limiting the length of time in which said digital signal representative of the temperature sensed is accumulated during said temperature mode period.

Claim 4

The electronic thermometer system of claim 1 in which said temperature sensing circuit includes an anticipation circuit responsive to the rate of change of said analog signal representative of the temperature being sensed to increase the current flow to said temperature measuring circuit for driving the system to indicate the final value temperature before that temperature is actually measured.

Claim 5

an electronic thermometer system having a temperature mode of operation during which a measured temperature is displayed and a time mode of operation during which a measured length of time is displayed, comprising: a timing and control circuit responsive to a signal representative of said measured temperature and defining an operation interval including a temperature mode period and a time mode period, for generating a signal representative of a predetermined length of time during said time mode period and for selectively presenting at its output a signal representative of said measured temperature during said temperature mode period and said signal representative of a predetermined length of time during said time mode period for display of said measured temperature and said measured length of time.

Claim 6

an electronic thermometer system having a temperature mode of operation during which a measured temperature is displayed and a time mode of operation during which a measured length of time is displayed, comprising: a timing and control circuit responsive to a signal representative of said measured temperature and defining an operation interval including a temperature mode period and a time mode period, for generating a signal representative of a predetermined length of time during said time mode period and for selectively presenting at its output a signal representative of said measured temperature during said temperature mode period and said signal representative of a predetermined length of time during said time mode period for display of said measured temperature and said measured length of time.

Claim 7

An electronic thermometer system having a temperature mode of operation during which a measured temperature is displayed and a time mode of operation during which a measured length of time is displayed, comprising: a timing and control circuit, for generating a signal representative of said measured length of time and responsive to a signal representative of said measured temperature including, a clock circuit, a timing network including a first timer for defining said time mode period and a second timer for defining said temperature mode period; a gating circuit responsive to said clock circuit and said first timer for passing said signal representative of said measured length of time during said time mode period and said signal representative of said measured temperature during said temperature mode period; and a temperature count limit circuit, responsive to said clock circuit and said first timer, for limiting the length of time in which said signal representative of said measured temperature is received during said temperature mode period.

Claim 8

An electronic thermometer system having a temperature mode of operation during which a measured temperature is displayed and a time mode of operation during which a measured length of time is displayed, comprising: a timing and control circuit, for generating a signal representative of said measured length of time and responsive to a signal representative of said measured temperature including, a clock circuit, a timing network including a first timer for defining said time mode period and a second timer for defining said temperature mode period; a gating circuit responsive to said clock circuit and said first timer for passing said signal representative of said measured length of time during said time mode period and said signal representative of said measured temperature during said temperature mode period; and a temperature count limit circuit, responsive to said clock circuit and said first timer, for limiting the length of time in which said signal representative of said measured temperature is received during said temperature mode period.

Claim 9

An electronic thermometer system having an operation interval including a temperature mode period during which a measured temperature is displayed and a time mode period during which a measured length of time is displayed, comprising: a temperature sensing circuit for providing an analog signal representative of variations in temperature; a temperature measuring circuit, responsive to said analog signal representative of variations in temperature provided by said temperature sensing circuiT, for providing a digital signal representative of the temperature sensed, a timing and control circuit, responsive to said digital signal representative of the temperature sensed provided by said temperature measuring circuit, and defining an operation interval including a temperature mode period and a time mode period, for generating a signal representative of a predetermined length of time during said time mode period and for selectively presenting at its output said signal representative of said predetermined length of time during said time mode period and said digital signal representative of the temperature sensed in said temperature mode period; and a display circuit responsive to said output from said timing and control circuit for selectively displaying, during said temperature mode period, the measured temperature indicated by said digital signal representative of the temperature sensed and displaying, during said time mode period, the measured time indicated by said signal representative of said predetermined length of time; said temperature sensing circuit including an anticipation circuit responsive to the rate of change of said analog signal representative of the temperature being sensed to increase the current flow to said temperature measuring circuit for driving the system to indicate the final value of the temperature before that value is actually measured.

Claim 10

An electronic thermometer system having an operation interval including a temperature mode period during which a measured temperature is displayed and a time mode period during which a measured length of time is displayed, comprising: a temperature sensing circuit for providing an analog signal representative of variations in temperature; a temperature measuring circuit, responsive to said analog signal representative of variations in temperature provided by said temperature sensing circuiT, for providing a digital signal representative of the temperature sensed, a timing and control circuit, responsive to said digital signal representative of the temperature sensed provided by said temperature measuring circuit, and defining an operation interval including a temperature mode period and a time mode period, for generating a signal representative of a predetermined length of time during said time mode period and for selectively presenting at its output said signal representative of said predetermined length of time during said time mode period and said digital signal representative of the temperature sensed in said temperature mode period; and a display circuit responsive to said output from said timing and control circuit for selectively displaying, during said temperature mode period, the measured temperature indicated by said digital signal representative of the temperature sensed and displaying, during said time mode period, the measured time indicated by said signal representative of said predetermined length of time; said temperature sensing circuit including an anticipation circuit responsive to the rate of change of said analog signal representative of the temperature being sensed to increase the current flow to said temperature measuring circuit for driving the system to indicate the final value of the temperature before that value is actually measured.