公开(公告)号：US10776511B2

公开(公告)日：2020-09-15

申请号：US15805611

申请日：2017-11-07

Applicant: Apple Inc.

Inventor： Kevin W. Decker ,  Conrad Shultz ,  Steve Falkenburg ,  Mateusz Rajca ,  Abhishek Bhowmick ,  Andrew H. Vyrros ,  Umesh S. Vaishampayan

IPC: H04L29/06 ,  G06F21/62 ,  H04L9/32 ,  H04L29/08 ,  H04W12/02 ,  G06F3/0483 ,  G06F1/28 ,  G06F3/0482

Abstract: Embodiments described herein provide a privacy mechanism to protect user data when transmitting the data to a server that estimates a frequency of such data amongst a set of client devices. One embodiment uses a differential privacy mechanism to enhance a user experience by inferring potential user preferences from analyzing crowdsourced user interaction data. Based on a statistical analysis of user interactions in relation to various features or events, development efforts with respect to application behavior may be refined or enhanced. For example, user interactions in relation to the presentation of content such as content from online sources may be analyzed. Accordingly, presentation settings or preferences may be defined based on the crowdsourced user interaction data.

公开(公告)号：US20200257816A1

公开(公告)日：2020-08-13

申请号：US16746683

申请日：2020-01-17

Applicant: Apple Inc.

Inventor： Yannick L. Sierra ,  Abhradeep Guha Thakurta ,  Umesh S. Vaishampayan ,  John C. Hurley ,  Keaton F. Mowery ,  Michael Brouwer

IPC: G06F21/62 ,  H04L9/06 ,  H04L29/06 ,  H04L9/08

Abstract: One embodiment provides a system that implements a 1-bit protocol for differential privacy for a set of client devices that transmit information to a server. Implementations may leverage specialized instruction sets or engines built into the hardware or firmware of a client device to improve the efficiency of the protocol. For example, a client device may utilize these cryptographic functions to randomize information sent to the server. In one embodiment, the client device may use cryptographic functions such as hashes including SHA or block ciphers including AES to provide an efficient mechanism for implementing differential privacy.

公开(公告)号：US10726139B2

公开(公告)日：2020-07-28

申请号：US15721894

申请日：2017-09-30

Applicant: Apple Inc.

Inventor： Abhishek Bhowmick ,  Andrew H. Vyrros ,  Matthew R. Salesi ,  Umesh S. Vaishampayan

IPC: G06F21/60 ,  G06F17/16 ,  G06F17/14 ,  G06F16/26 ,  H04L9/32 ,  G06F21/62 ,  G06F17/18

Abstract: Embodiments described herein ensure differential privacy when transmitting data to a server that estimates a frequency of such data amongst a set of client devices. The differential privacy mechanism may provide a predictable degree of variance for frequency estimations of data. The system may use a multibit histogram model or Hadamard multibit model for the differential privacy mechanism, both of which provide a predictable degree of accuracy of frequency estimations while still providing mathematically provable levels of privacy.

公开(公告)号：US10599867B2

公开(公告)日：2020-03-24

申请号：US15805591

申请日：2017-11-07

Applicant: Apple Inc.

Inventor： Abhishek Bhowmick ,  Andrew H. Vyrros ,  Umesh S. Vaishampayan ,  Kevin W. Decker ,  Conrad Shultz ,  Steve Falkenburg ,  Mateusz Rajca

IPC: H04L29/08 ,  G06F21/62 ,  H04L29/06 ,  G06F3/0483 ,  G06F1/28 ,  G06F3/0482

Abstract: Embodiments described herein provide a privacy mechanism to protect user data when transmitting the data to a server that estimates a frequency of such data amongst a set of client devices. In one embodiment, a differential privacy mechanism is implemented using a count-mean-sketch technique that can reduce resource requirements required to enable privacy while providing provable guarantees regarding privacy and utility. For instance, the mechanism can provide the ability to tailor utility (e.g. accuracy of estimations) against the resource requirements (e.g. transmission bandwidth and computation complexity).

公开(公告)号：US20180349620A1

公开(公告)日：2018-12-06

申请号：US15721894

申请日：2017-09-30

Applicant: Apple Inc.

Inventor： Abhishek Bhowmick ,  Andrew H. Vyrros ,  Matthew R. Salesi ,  Umesh S. Vaishampayan

IPC: G06F21/60 ,  G06F17/30 ,  G06F17/14 ,  G06F17/16

Abstract: Embodiments described herein ensure differential privacy when transmitting data to a server that estimates a frequency of such data amongst a set of client devices. The differential privacy mechanism may provide a predictable degree of variance for frequency estimations of data. The system may use a multibit histogram model or Hadamard multibit model for the differential privacy mechanism, both of which provide a predictable degree of accuracy of frequency estimations while still providing mathematically provable levels of privacy.

公开(公告)号：US09813990B2

公开(公告)日：2017-11-07

申请号：US14622659

申请日：2015-02-13

Applicant: Apple Inc.

Inventor： Phillip Stanley-Marbell ,  Gaurav Kapoor ,  Umesh S. Vaishampayan

IPC: H04W52/02

CPC classification number: H04W52/0235 ,  Y02D70/1224 ,  Y02D70/142 ,  Y02D70/144 ,  Y02D70/146 ,  Y02D70/164 ,  Y02D70/26

Abstract: In some implementations, a mobile device can be configured to monitor environmental, system and user events associated with the mobile device and/or a peer device. The occurrence of one or more events can trigger adjustments to system settings. The mobile device can be configured to keep frequently invoked applications up to date based on a forecast of predicted invocations by the user. In some implementations, the mobile device can receive push notifications associated with applications that indicate that new content is available for the applications to download. The mobile device can launch the applications associated with the push notifications in the background and download the new content. In some implementations, before running an application or communicating with a peer device, the mobile device can be configured to check energy and data budgets and environmental conditions of the mobile device and/or a peer device to ensure a high quality user experience.

公开(公告)号：US09705908B1

公开(公告)日：2017-07-11

申请号：US15275360

申请日：2016-09-24

Applicant: Apple Inc.

Inventor： Abhradeep Guha Thakurta ,  Andrew H. Vyrros ,  Umesh S. Vaishampayan ,  Gaurav Kapoor ,  Julien Freudinger ,  Vipul Ved Prakash ,  Arnaud Legendre ,  Steven Duplinsky

IPC: H04L29/06 ,  G06N99/00

CPC classification number: H04L63/1425 ,  G06F17/2235 ,  G06F17/2735 ,  G06F17/276 ,  G06F21/6254 ,  G06N99/005 ,  H04L63/0421

Abstract: Systems and methods are disclosed for generating term frequencies of known terms based on crowdsourced differentially private sketches of the known terms. An asset catalog can be updated with new frequency counts for known terms based on the crowdsourced differentially private sketches. Known terms can have a classification. A client device can maintain a privacy budget for each classification of known terms. Classifications can include emojis, deep links, locations, finance terms, and health terms, etc. A privacy budget ensures that a client does not transmit too much information to a term frequency server, thereby compromising the privacy of the client device.

公开(公告)号：US09645998B1

公开(公告)日：2017-05-09

申请号：US15275357

申请日：2016-09-24

Applicant: Apple Inc.

Inventor： Abhradeep Guha Thakurta ,  Andrew H. Vyrros ,  Umesh S. Vaishampayan ,  Gaurav Kapoor ,  Julien Freudiger ,  Vivek Rangarajan Sridhar ,  Doug Davidson

IPC: G06F17/27 ,  G06N99/00 ,  G06F17/16

CPC classification number: G06F17/2765 ,  G06F17/16 ,  G06F17/2705 ,  G06F17/2735 ,  G06F17/277 ,  G06F17/30737 ,  G06N99/005

Abstract: Systems and methods are disclosed for a server learning new words generated by user client devices in a crowdsourced manner while maintaining local differential privacy of client devices. A client device can determine that a word typed on the client device is a new word that is not contained in a dictionary or asset catalog on the client device. New words can be grouped in classifications such as entertainment, health, finance, etc. A differential privacy system on the client device can comprise a privacy budget for each classification of new words. If there is privacy budget available for the classification, then one or more new terms in a classification can be sent to new term learning server, and the privacy budget for the classification reduced. The privacy budget can be periodically replenished.

公开(公告)号：US20160360007A1

公开(公告)日：2016-12-08

申请号：US15151306

申请日：2016-05-10

Applicant: Apple Inc.

Inventor： Michael R. Siracusa ,  Joao Pedro Forjaz de Lacerda ,  Kit-Man Wan ,  Gaurav Kapoor ,  Umesh S. Vaishampayan

IPC: H04L29/08

CPC classification number: H04L67/327 ,  G06F8/61 ,  G06F9/445 ,  G06F9/461 ,  G06F9/542 ,  G06F9/546 ,  G06F11/30 ,  G06N7/005 ,  H04L67/14 ,  H04L67/26 ,  H04W24/02 ,  H04W52/0264 ,  Y02D10/43 ,  Y02D70/00 ,  Y02D70/142 ,  Y02D70/144 ,  Y02D70/164 ,  Y02D70/26

Abstract: Disclosed are systems, methods, and non-transitory computer-readable storage media for notifying context clients of changes to the current context of a computing device. In some implementations, a context client can register to be called back when the context daemon detects specified context. For example, the context client can specify a context in which the context client is interested. When the context daemon detects that the current context of the computing device corresponds to the registered context, the context daemon can notify the context client that the current context matches the context in which the context client is interested. Thus, context clients do not require the programming necessary to independently obtain context updates and detect changes in context that are relevant or of interest to the context client.

Abstract translation: 公开了用于通知上下文客户机对计算设备的当前上下文的改变的系统，方法和非暂时的计算机可读存储介质。 在一些实现中，当上下文守护程序检测到指定的上下文时，上下文客户端可以注册以被调用。 例如，上下文客户端可以指定上下文客户端感兴趣的上下文。 当上下文守护程序检测到计算设备的当前上下文对应于注册的上下文时，上下文守护进程可以通知上下文客户端当前上下文与上下文客户端感兴趣的上下文匹配。 因此，上下文客户端不需要必要的编程来独立地获取上下文更新并检测上下文中与上下文客户端相关或感兴趣的上下文中的变化。

公开(公告)号：US20150347204A1

公开(公告)日：2015-12-03

申请号：US14622631

申请日：2015-02-13

Applicant: Apple Inc.

Inventor： Phillip Stanley-Marbell ,  Gaurav Kapoor ,  Umesh S. Vaishampayan

IPC: G06F9/54 ,  G06F9/48

CPC classification number: A61B5/1118 ,  A61B5/4866 ,  A61B5/7275 ,  G06F8/65 ,  G06F9/4843 ,  G06F9/4893 ,  G06F9/542 ,  G06F2209/482 ,  Y02D10/24 ,  Y02D10/42

Abstract: In some implementations, a mobile device can be configured to monitor environmental, system and user events associated with the mobile device and/or a peer device. The occurrence of one or more events can trigger adjustments to system settings. The mobile device can be configured to keep frequently invoked applications up to date based on a forecast of predicted invocations by the user. In some implementations, the mobile device can receive push notifications associated with applications that indicate that new content is available for the applications to download. The mobile device can launch the applications associated with the push notifications in the background and download the new content. In some implementations, before running an application or communicating with a peer device, the mobile device can be configured to check energy and data budgets and environmental conditions of the mobile device and/or a peer device to ensure a high quality user experience.

Abstract translation: 在一些实现中，移动设备可以被配置为监视与移动设备和/或对等设备相关联的环境，系统和用户事件。 一个或多个事件的发生可以触发对系统设置的调整。 移动设备可以被配置为基于用户预测的调用的预测来保持频繁被调用的应用程序的最新。 在一些实现中，移动设备可以接收与指示新内容可用于应用下载的应用相关联的推送通知。 移动设备可以在后台启动与推送通知相关联的应用，并下载新的内容。 在一些实施方案中，在运行应用程序或与对等设备通信之前，移动设备可以被配置为检查移动设备和/或对等设备的能量和数据预算以及环境条件以确保高质量的用户体验。