-
公开(公告)号：US20230101044A1
公开(公告)日：2023-03-30
申请号：US17485125
申请日：2021-09-24
Applicant: Apple Inc.
Inventor： Craig P. Finlinson , Weibiao Zhang , Tao Zeng
IPC: G01K7/21
Abstract: Various techniques for implementing resistive temperature sensors that rely on the resistors' temperature sensitivity to provide temperature sensing are disclosed. Temperature sensitive resistors may be implemented in a resistor stack in combination with a resistor stack of resistors that are relatively temperature indifferent. Various temperature sensor circuits implementing these temperature sensitive resistors are also disclosed. A temperature sensor circuit may implement the temperature sensitive resistors along with the resistors that are relatively stable with temperature to output a voltage signal that is indicative of the temperature sensed by the circuit. In some instances, the signal from the temperature sensitive resistors is increased through the use of a feedback resistor loop.
-
公开(公告)号：US20250012639A1
公开(公告)日：2025-01-09
申请号：US18808877
申请日：2024-08-19
Applicant: Apple Inc.
Inventor： Craig P. Finlinson , Weibiao Zhang , Tao Zeng
Abstract: Various techniques for implementing resistive temperature sensors that rely on the resistors' temperature sensitivity to provide temperature sensing are disclosed. Temperature sensitive resistors may be implemented in a resistor stack in combination with a resistor stack of resistors that are relatively temperature indifferent. Various temperature sensor circuits implementing these temperature sensitive resistors are also disclosed. A temperature sensor circuit may implement the temperature sensitive resistors along with the resistors that are relatively stable with temperature to output a voltage signal that is indicative of the temperature sensed by the circuit. In some instances, the signal from the temperature sensitive resistors is increased through the use of a feedback resistor loop.
-
公开(公告)号：US20240015495A1
公开(公告)日：2024-01-11
申请号：US17860704
申请日：2022-07-08
Applicant: Apple Inc.
Inventor： Minghai Feng , Weiku Zhai , Tao Zeng , Cheng Li , Yaoqi Yan , Ying Zhang , Jishan Gao , Yong Ba , Ruirui Zong
Abstract: An electronic device may include wireless circuitry with first and second receivers. Each receiver may include circuitry for receiving radio-frequency signals using a first radio access technology (RAT) and using second or additional RATs. The wireless circuitry may perform system selection in which the receivers attempt to acquire a signal transmitted by a base station using different RATs. The first receiver and the second receiver may concurrently perform system selection in which the first receiver performs a band scan over the first RAT while the second receiver concurrently performs a band scan over a second or additional RAT. Additional band scans may be performed as needed until a signal is acquired. Once a signal is acquired, the wireless circuitry may establish cellular communications with the wireless base station based on the acquired signal. This may minimize the amount of time required to begin cellular telephone communications in many situations.
-
公开(公告)号：US12098964B2
公开(公告)日：2024-09-24
申请号：US17485125
申请日：2021-09-24
Applicant: Apple Inc.
Inventor： Craig P. Finlinson , Weibiao Zhang , Tao Zeng
CPC classification number: G01K7/21 , G01K15/005
Abstract: Various techniques for implementing resistive temperature sensors that rely on the resistors' temperature sensitivity to provide temperature sensing are disclosed. Temperature sensitive resistors may be implemented in a resistor stack in combination with a resistor stack of resistors that are relatively temperature indifferent. Various temperature sensor circuits implementing these temperature sensitive resistors are also disclosed. A temperature sensor circuit may implement the temperature sensitive resistors along with the resistors that are relatively stable with temperature to output a voltage signal that is indicative of the temperature sensed by the circuit. In some instances, the signal from the temperature sensitive resistors is increased through the use of a feedback resistor loop.
-
-
-
Search Results
4
records
(took 0.018 seconds)
