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1.发明授权公开(公告)号：US11868109B2
公开(公告)日：2024-01-09
申请号：US17466320
申请日：2021-09-03
Applicant: Apple Inc.
Inventor： Robert S. Brandt, II , Bruno W. Garlepp , Ke Yun , Navin Kumar , Jafar Savoj
IPC: G05B19/042 , G06F13/38
CPC classification number: G05B19/042 , G06F13/387 , G05B2219/25341
Abstract: A universally-designed control circuit for communicating with multiple types of sensors is disclosed. For example, a control circuit may communicate with either ring oscillator-based sensors or BJT-based sensors based on programming implemented in the control circuit. The control circuit may include programmable communication protocol circuits for communicating with the sensors and conversion circuits that convert a particular type of sensor data packet into a generic format. The generic format sensor data may then be utilized by a power management unit or other device to control operation of an integrated circuit.
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公开(公告)号：US20220083113A1
公开(公告)日：2022-03-17
申请号：US17018999
申请日：2020-09-11
Applicant: Apple Inc.
Inventor： Jafar Savoj , Robert S. Brandt, II , Bruno W. Garlepp
IPC: G06F1/28 , G01K7/00 , G01R19/00 , G06F1/3296
Abstract: A sensor circuit in a computer system measures a frequency of an oscillator circuit and uses the measured frequency to determine an operating condition of the computer system. The accuracy of the operating condition is limited by various sources of noise, including device noise, that introduce error into frequency measurements, limiting the accuracy to which the frequency of the oscillator signal may be measured. To improve the accuracy of the frequency measurement of the oscillator signal, the sensor circuit disables the oscillator between successive measurements, in order to reduce the correlation of error between the successive measurements. The sensor circuit combines the multiple measurement results to determine the frequency of the oscillator signal to a higher degree of accuracy, thereby improving the accuracy to which the operating condition is determined.
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公开(公告)号：US11215664B1
公开(公告)日：2022-01-04
申请号：US16906715
申请日：2020-06-19
Applicant: Apple Inc.
Inventor： Ke Yun , Weibiao Zhang , Bruno W. Garlepp , Gin S. Yee
Abstract: An apparatus includes an integrated circuit that includes an in-circuit power switch coupled to a power supply node, a functional circuit coupled between the in-circuit power switch and a ground node, a test circuit, and a test power switch coupled to the test circuit, wherein the test power switch is a replica of the in-circuit power switch. The test circuit is configured to determine characteristics of the test power switch, and to measure a voltage difference across the in-circuit power switch. The test circuit is also configured to use the characteristics of the test power switch and the voltage difference to determine a power consumption of the functional circuit.
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公开(公告)号：US11671103B2
公开(公告)日：2023-06-06
申请号：US17571228
申请日：2022-01-07
Applicant: Apple Inc.
Inventor： Ramy A. Ahmed , Bruno W. Garlepp , Jafar Savoj
IPC: H03K21/00 , H03K21/40 , H03K3/03 , H03K19/0175 , H03K21/08
CPC classification number: H03K21/403 , H03K3/0315 , H03K19/017509 , H03K21/08
Abstract: A circuit for sensing local operating properties of an integrated circuit is disclosed. The circuit may include one or more sensor circuits configured to sense the local operating properties of the integrated circuit. The sensor circuits may receive a supply voltage with a magnitude in a limited range from a digital power supply that is different from the digital power supply that provides power to functional circuits in the integrated circuit. Level shifters may be coupled to the sensor circuits to shift output signals from the sensor circuits to levels that correspond to the digital power supply that provides power to functional circuits in the integrated circuit. Counters and a shift register may be coupled to the level shifters to receive the shifted output signals, the values of which may be used to determine the local operating properties of the integrated circuit as sensed by the sensor circuits.
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公开(公告)号：US20210263080A1
公开(公告)日：2021-08-26
申请号：US16796405
申请日：2020-02-20
Applicant: Apple Inc.
Inventor： Ramy A. Ahmed , Bruno W. Garlepp , Jafar Savoj
IPC: G01R19/255 , H03K19/0175 , H03K21/08 , H03K3/03 , G01K7/00
Abstract: A circuit for sensing local operating properties of an integrated circuit is disclosed. The circuit may include one or more sensor circuits configured to sense the local operating properties of the integrated circuit. The sensor circuits may receive a supply voltage with a magnitude in a limited range from a digital power supply that is different from the digital power supply that provides power to functional circuits in the integrated circuit. Level shifters may be coupled to the sensor circuits to shift output signals from the sensor circuits to levels that correspond to the digital power supply that provides power to functional circuits in the integrated circuit. Counters and a shift register may be coupled to the level shifters to receive the shifted output signals, the values of which may be used to determine the local operating properties of the integrated circuit as sensed by the sensor circuits.
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Patent Agency Ranking
公开(公告)号：US12283956B2
公开(公告)日：2025-04-22
申请号：US18329027
申请日：2023-06-05
Applicant: Apple Inc.
Inventor： Ramy A. Ahmed , Bruno W. Garlepp , Jafar Savoj
Abstract: A circuit for sensing local operating properties of an integrated circuit is disclosed. The circuit may include one or more sensor circuits configured to sense the local operating properties of the integrated circuit. The sensor circuits may receive a supply voltage with a magnitude in a limited range from a digital power supply that is different from the digital power supply that provides power to functional circuits in the integrated circuit. Level shifters may be coupled to the sensor circuits to shift output signals from the sensor circuits to levels that correspond to the digital power supply that provides power to functional circuits in the integrated circuit. Counters and a shift register may be coupled to the level shifters to receive the shifted output signals, the values of which may be used to determine the local operating properties of the integrated circuit as sensed by the sensor circuits.
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公开(公告)号：US20240014821A1
公开(公告)日：2024-01-11
申请号：US18329027
申请日：2023-06-05
Applicant: Apple Inc.
Inventor： Ramy A. Ahmed , Bruno W. Garlepp , Jafar Savoj
IPC: H03K21/40 , H03K3/03 , H03K19/0175 , H03K21/08
CPC classification number: H03K21/403 , H03K3/0315 , H03K19/017509 , H03K21/08
Abstract: A circuit for sensing local operating properties of an integrated circuit is disclosed. The circuit may include one or more sensor circuits configured to sense the local operating properties of the integrated circuit. The sensor circuits may receive a supply voltage with a magnitude in a limited range from a digital power supply that is different from the digital power supply that provides power to functional circuits in the integrated circuit. Level shifters may be coupled to the sensor circuits to shift output signals from the sensor circuits to levels that correspond to the digital power supply that provides power to functional circuits in the integrated circuit. Counters and a shift register may be coupled to the level shifters to receive the shifted output signals, the values of which may be used to determine the local operating properties of the integrated circuit as sensed by the sensor circuits.
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公开(公告)号：US12013713B2
公开(公告)日：2024-06-18
申请号：US17033528
申请日：2020-09-25
Applicant: Apple Inc.
Inventor： Ali Mesgarani , Ke Yun , Seyedeh Sedigheh Hashemi , Jasdeep S. Dhaliwal , Mansour Keramat , Jafar Savoj , Bruno W. Garlepp , Vahid Majidzadeh Bafar , Emerson S. Fang
Abstract: The present disclosure is directed to a system implementing a sensor. A sensing system is implemented in a functional circuit block that is coupled to a global supply voltage node. The sensing system includes a power converter circuit configured to generate a regulated voltage level on a local supply node using the voltage present on the global supply voltage node. The system also includes a sensor circuit coupled to receive the regulated voltage node, wherein the sensor is configured to compare corresponding parameters of different ones of a number of subset of device at a plurality of different time points and generate a plurality of comparison results. The comparisons generate an analog signal that is proportional to the operating parameter. An analog-to-digital converter (ADC) is coupled to receive the analog signal and generate a plurality of bits corresponding thereto.
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公开(公告)号：US20230076507A1
公开(公告)日：2023-03-09
申请号：US17466320
申请日：2021-09-03
Applicant: Apple Inc.
Inventor： Robert S. Brandt, II , Bruno W. Garlepp , Ke Yun , Navin Kumar , Jafar Savoj
IPC: G05B19/042
Abstract: A universally-designed control circuit for communicating with multiple types of sensors is disclosed. For example, a control circuit may communicate with either ring oscillator-based sensors or BJT-based sensors based on programming implemented in the control circuit. The control circuit may include programmable communication protocol circuits for communicating with the sensors and conversion circuits that convert a particular type of sensor data packet into a generic format. The generic format sensor data may then be utilized by a power management unit or other device to control operation of an integrated circuit.
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公开(公告)号：US20220216874A1
公开(公告)日：2022-07-07
申请号：US17571228
申请日：2022-01-07
Applicant: Apple Inc.
Inventor： Ramy A. Ahmed , Bruno W. Garlepp , Jafar Savoj
IPC: H03K21/40 , H03K3/03 , H03K19/0175 , H03K21/08
Abstract: A circuit for sensing local operating properties of an integrated circuit is disclosed. The circuit may include one or more sensor circuits configured to sense the local operating properties of the integrated circuit. The sensor circuits may receive a supply voltage with a magnitude in a limited range from a digital power supply that is different from the digital power supply that provides power to functional circuits in the integrated circuit. Level shifters may be coupled to the sensor circuits to shift output signals from the sensor circuits to levels that correspond to the digital power supply that provides power to functional circuits in the integrated circuit. Counters and a shift register may be coupled to the level shifters to receive the shifted output signals, the values of which may be used to determine the local operating properties of the integrated circuit as sensed by the sensor circuits.
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