PATENT CLAIM ANALYSIS

Application Number: 15956310
Application Type: Utility
Filing Date: 2018-04
Publication Date: 2018-08
Patent Classification: ["347", "016000"]

Abstract:
In one example, a method for controlling temperature of a print dryer. High power is applied to a heater of the print dryer. A series of temperatures of the print dryer are periodically measured and stored until a target temperature for the print dryer is exceeded. Low power is applied to the heater after the target temperature is exceeded. A rate of temperature change at a time when the target temperature was exceeded is calculated from the stored temperatures. Using the rate, an initial heater duty cycle defining an initial heater power determined. PID control of the heater power is performed, beginning with the initial heater duty cycle, to maintain the print dryer temperature at the target temperature within a predefined accuracy.

Claim (Index 21):
A printer, comprising:\n a print dryer having a variable-power heater controllable by a duty cycle; a sensor in the print dryer to repetitively measure and record an internal temperature of the print dryer; and a controller coupled to the heater and the sensor to\n apply to the heater a high duty cycle to heat the print dryer until the internal temperature exceeds a target temperature and then apply a low duty cycle, \n calculate from the recorded internal temperatures a dT/dt slope occurring at an end portion of the high duty cycle before the low duty cycle, \n determine an initial heater duty cycle corresponding to the slope, and \n perform proportional-integral-derivative (PID) control of the heater beginning at the initial heater duty cycle to maintain the print dryer at the target temperature within a predefined accuracy.

Metadata:
- Claim Count in Document: 5.0
- Percentile: 91.0
- Lexical Diversity: 2.33333
- Patent Class: 347.0
- Transitional Phrase Type: open
- Component Type: 1
- Foreign Priority: False
- Related Applications: ['15418951', '10967581', '15290728', '15381511', '15118271']

Analysis Scores:
- 35 USC 101 Eligibility (BERT): 0.7249834461871624
- 35 USC 102 Novelty (BERT): 0.4887826536249723
- Combined Prediction Score: 0.7013633669309435
- Mean Citation Score: 167.60620799999995
- Max Citation Score: 268.3125
- Similarity Product: 232.88668611645696

Labels:
- Claim Label 101: 1
- Claim Label 102: 1
- Claim Label 103: 1
- Claim Label 112: 1
- Combined Label: 1
- Label 101 Adjusted: 1

Dataset: test