Temperature sensing device in an integrated circuit

Details Temperature sensing device in an integrated circuit Temperature sensing device in an integrated circuit

2006-04-25

2006-04-25

Tso, Edward H. (Department: 2838)

Electricity: battery or capacitor charging or discharging

Battery or cell charging

With thermal condition detection

Reexamination Certificate

active

07034507

ABSTRACT:
A temperature sensing device can be embedded in a memory circuit in order to sense the temperature of the memory circuit. One oscillator generates a temperature variable signal that increases frequency as the temperature of the oscillator increases and decreases frequency when the temperature of the oscillator decreases. A temperature invariant oscillator generates a fixed width signal that is controlled by an oscillator read logic and indicates a temperature sense cycle. An n-bit counter is clocked by the temperature variable signal while the fixed width signal enables/inhibits the counter. The faster the counter counts, the larger the count value at the end of the sense cycle indicated by the fixed width signal. A larger count value indicates a warmer temperature. A smaller count value indicates a colder temperature.

REFERENCES:
patent: 4609292 (1986-09-01), Asano
patent: 5276843 (1994-01-01), Tillinghast
patent: 5912547 (1999-06-01), Grabon
patent: 6414559 (2002-07-01), Cole
patent: 6538944 (2003-03-01), Choi
patent: 6597614 (2003-07-01), Nam
patent: 6636937 (2003-10-01), Peter

Affiliated with

Also associated with

Rating

Temperature sensing device in an integrated circuit does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Temperature sensing device in an integrated circuit, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Temperature sensing device in an integrated circuit will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-3618421