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Author

Zhang Haiping

Bio: Zhang Haiping is an academic researcher. The author has contributed to research in topics: Terminal (electronics) & Fingerprint (computing). The author has an hindex of 18, co-authored 514 publications receiving 2836 citations.

Papers published on a yearly basis

Papers
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Patent
12 Oct 2016
TL;DR: In this paper, the number of target feature points of the first fingerprint image is determined and a target adjustment parameter is acquired according to a preset mapping relation between the feature points and adjustment parameters.
Abstract: A fingerprint unlocking method may include receiving a first fingerprint image. The number of target feature points of the first fingerprint image is determined. A target adjustment parameter corresponding to the number of target feature points is acquired according to a preset mapping relation between the number of feature points and adjustment parameters. A second fingerprint image is received according to the target adjustment parameter. A terminal is unlocked when the second fingerprint image matches with a preset fingerprint template. A terminal is also provided.

111 citations

Patent
22 Sep 2017
TL;DR: In this paper, an unlocking control method and a related product are provided to determine appropriate control parameters for an environment, and control a recognition process on the basis of these control parameters, thereby increasing a successful recognition rate and improving multi-stage biometric recognition efficiency.
Abstract: Provided are an unlocking control method and a related product. The method comprises: acquiring an environmental parameter (101); acquiring first biometric information (102); determining a first biometric recognition control parameter and a second biometric recognition control parameter corresponding to the environmental parameter (103); performing, according to the first biometric recognition control parameter, first biometric recognition on the first biometric information (104); upon successful recognition of the first biometric information, acquiring second biometric information (105); performing, according to the second biometric recognition control parameter, second biometric recognition on the second biometric information (106); and upon successful recognition of the second biometric information, proceeding to a next unlocking procedure (107). The method and the related product can determine appropriate control parameters for an environment, and control a recognition process on the basis of these control parameters, thereby increasing a successful recognition rate, and improving multi-stage biometric recognition efficiency.

106 citations

Patent
12 Oct 2016
TL;DR: In this paper, an unlocking control method and a mobile terminal are provided, which includes a fingerprint identification device and a fingerprint collecting surface of at least one of N fingerprint identification units, configured to wait for a touch of a user in a process of fingerprint collecting.
Abstract: An unlocking control method and a mobile terminal are provided. The mobile terminal includes a fingerprint identification device. The fingerprint identification device includes N fingerprint identification units. A fingerprint collecting surface of at least one of N fingerprint identification units is configured to wait for a touch of a user in a process of fingerprint collecting. The fingerprint identification device at least includes two types of fingerprint identification units.

87 citations

Patent
06 Mar 2018
TL;DR: In this article, a display screen assembly consisting of a backlight module, a receiving element and a light supplementing element is presented, where the backlight is used for providing a first optical signal and the receiving element for supplementing light to the signal transmission channel.
Abstract: The invention provides a display screen assembly and electronic equipment. The display screen assembly comprises a backlight module, a receiving element and a light supplementing element, wherein thebacklight module is used for providing a first optical signal; the backlight module is provided with a signal transmission channel, and the signal transmission channel is provided with a signal emitting port; the receiving element and the signal emitting port are oppositely arranged, so as to receive a second optical signal emitted from the signal emitting port; the wavelength of the second optical signal is different from that of the first optical signal; and the light supplementing element is located between the backlight module and the receiving element, and the light supplementing part isused for supplementing light to the signal transmission channel. The light supplementing element is arranged between the backlight module and the receiving element of the display screen assembly, andthe light supplementing element can be used for supplementing light to the area of the signal transmission channel arranged in the backlight module, so that the display screen assembly is prevented from generating a brightness difference between the area corresponding to the signal transmission channel and other areas, thereby improving the backlight brightness uniformity of the display screen assembly.

55 citations

Patent
09 Mar 2016
TL;DR: In this article, a fingerprint identification method, a fingerprint template updating method, and a fingerprint updating device and a mobile terminal are described. The method comprises the following steps: acquiring a fingerprint image input by a user, comparing the fingerprint image with N fingerprint templates in a pre-stored fingerprint template group, and further judging whether the matching value between the fingerprint index and the ith fingerprint template in the group is greater than a second preset threshold.
Abstract: The invention discloses a fingerprint identification method, a fingerprint template updating method, a fingerprint template updating device and a mobile terminal The method comprises the following steps: acquiring a fingerprint image input by a user; comparing the fingerprint image with N fingerprint templates in a pre-stored fingerprint template group, and making a mobile terminal execute a corresponding target operation and further judging whether the matching value between the fingerprint image and the ith fingerprint template in the pre-stored fingerprint template group is greater than a second preset threshold if the matching value between the fingerprint image and the ith fingerprint template in the pre-stored fingerprint template group is greater than a first preset threshold, wherein the second preset threshold is greater than the first preset threshold; and generating a new fingerprint template according to the fingerprint image and adding the new fingerprint template to the fingerprint template group if the matching value is greater than the second preset threshold According to the fingerprint identification method provided by the embodiment, the fingerprint templates are no longer fixed, and the fingerprint templates in the fingerprint template group are constantly improved and supplemented according to the fingerprint image used by the user in the subsequent using process

46 citations


Cited by
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Patent
Jong Hwan Kim1
13 Mar 2015
TL;DR: In this article, a mobile terminal including a body; a touchscreen provided to a front and extending to side of the body and configured to display content; and a controller configured to detect one side of a body when it comes into contact with a side of an external terminal, display a first area on the touchscreen corresponding to a contact area of body and the external terminal and a second area including the content.
Abstract: A mobile terminal including a body; a touchscreen provided to a front and extending to side of the body and configured to display content; and a controller configured to detect one side of the body comes into contact with one side of an external terminal, display a first area on the touchscreen corresponding to a contact area of the body and the external terminal and a second area including the content, receive an input of moving the content displayed in the second area to the first area, display the content in the first area, and share the content in the first area with the external terminal.

1,441 citations

Patent
14 May 2015
TL;DR: In this paper, a display panel and a display device are provided, and the display panel comprises a central region and peripheral regions, where the peripheral regions are provided at two opposite ends of the display and have a first curvature.
Abstract: A display panel and a display device are provided. The display panel comprises a central region and peripheral regions. The peripheral regions are provided at two opposite ends of the display panel and have a first curvature; the central region is provided between the two opposite ends of the display panel and has a second curvature; and the second curvature of the central region is smaller than the first curvature of the peripheral regions.

230 citations

Patent
12 Oct 2016
TL;DR: In this paper, the number of target feature points of the first fingerprint image is determined and a target adjustment parameter is acquired according to a preset mapping relation between the feature points and adjustment parameters.
Abstract: A fingerprint unlocking method may include receiving a first fingerprint image. The number of target feature points of the first fingerprint image is determined. A target adjustment parameter corresponding to the number of target feature points is acquired according to a preset mapping relation between the number of feature points and adjustment parameters. A second fingerprint image is received according to the target adjustment parameter. A terminal is unlocked when the second fingerprint image matches with a preset fingerprint template. A terminal is also provided.

111 citations

Patent
27 Dec 2017
TL;DR: In this paper, a display screen is provided, including a display layer and a first light shielding layer, and the fingerprint recognition area includes at least one first through hole sensing signals emitted and received by a fingerprint unit located below the display screen can be transmitted through the first-through hole.
Abstract: A display screen is provided, including a display layer and a first light shielding layer. The display layer has a display surface, the first light shielding layer is arranged on the display surface and has a fingerprint recognition area, the fingerprint recognition area includes at least one first through hole sensing signals emitted and received by a fingerprint unit located below the display screen can be transmitted through the first through hole. A display device is provided, including the display screen and an optical fingerprint unit. The optical fingerprint unit is disposed at a side of the display layer away from the first light shielding layer and located at a position corresponding to an optical fingerprint recognition area. The fingerprint unit includes a light emitter and a light inductor, and a light signal emitted by the light emitter is transmitted to a fingerprint and received by the light inductor after being reflected by the fingerprint. A mobile terminal is provided.

110 citations

Patent
22 Sep 2017
TL;DR: In this paper, an unlocking control method and a related product are provided to determine appropriate control parameters for an environment, and control a recognition process on the basis of these control parameters, thereby increasing a successful recognition rate and improving multi-stage biometric recognition efficiency.
Abstract: Provided are an unlocking control method and a related product. The method comprises: acquiring an environmental parameter (101); acquiring first biometric information (102); determining a first biometric recognition control parameter and a second biometric recognition control parameter corresponding to the environmental parameter (103); performing, according to the first biometric recognition control parameter, first biometric recognition on the first biometric information (104); upon successful recognition of the first biometric information, acquiring second biometric information (105); performing, according to the second biometric recognition control parameter, second biometric recognition on the second biometric information (106); and upon successful recognition of the second biometric information, proceeding to a next unlocking procedure (107). The method and the related product can determine appropriate control parameters for an environment, and control a recognition process on the basis of these control parameters, thereby increasing a successful recognition rate, and improving multi-stage biometric recognition efficiency.

106 citations