公开(公告)号：US20210176438A1

公开(公告)日：2021-06-10

申请号：US17154843

申请日：2021-01-21

Applicant: Huawei Technologies Co., Ltd.

Inventor： Hector NAVARRO FRUCTUOSO ,  Panji SETIAWAN

IPC: H04N9/31 ,  G06F3/01 ,  G02B27/00 ,  G02B27/09

Abstract: A retinal display apparatus for generating an image on the retina of an eye of a user is provided. The retinal display apparatus generates an output beam conveying the image and directs the output beam toward the pupil of an eye of a user. The apparatus comprises an eye-tracking device and steers the output beam in accordance with a current orientation of the eye.

公开(公告)号：US20220036855A1

公开(公告)日：2022-02-03

申请号：US17504356

申请日：2021-10-18

Applicant: Huawei Technologies Co., Ltd.

Inventor： Atanas BOEV ,  Panji SETIAWAN ,  Bogdan Cihodariu IONITA

IPC: G09G5/04 ,  G09G5/39 ,  G09G5/10

Abstract: The present disclosure provides a device, in particular a multifocal display device. The device includes: a display element configured to generate an image; and a controller configured to control the display element according to at least a first bit sequence provided over a first determined time period and a second bit sequence provided over a second determined time period, in order to generate the image with one or more colors, the bit sequences including for each color a number of bits of different significance. Moreover, the device is configured to generate the first bit sequence from an original bit sequence based on discarding at least one bit of a color and to generate the second bit sequence from the original bit sequence based on discarding at least one other bit of the color.

公开(公告)号：US20210227186A1

公开(公告)日：2021-07-22

申请号：US17140808

申请日：2021-01-04

Applicant: Huawei Technologies Co., Ltd.

Inventor： Hector NAVARRO FRUCTUOSO ,  Bogdan Cihodariu IONITA ,  Atanas BOEV ,  Panji SETIAWAN

IPC: H04N9/31 ,  G06F3/01 ,  G02B27/01

Abstract: The disclosure relates to a retinal display apparatus for generating an image on the retina of an eye of a user, wherein the retinal display apparatus is configured to generate multiple light beams, each light beam conveying an instance of the image, wherein the multiple light beams correspond one-to-one to multiple potential orientations of the eye of the user. Moreover, the disclosure relates to a corresponding method.

公开(公告)号：US20220020132A1

公开(公告)日：2022-01-20

申请号：US17491007

申请日：2021-09-30

Applicant: Huawei Technologies Co., Ltd.

Inventor： Lukasz KONDRAD ,  Atanas BOEV ,  Panji SETIAWAN ,  Bogdan Cihodariu IONITA

IPC: G06T5/50 ,  G06T5/00 ,  G06T5/20 ,  G02B30/52

Abstract: The present disclosure provides a an image processing device for providing a plurality of enhanced partial images which together represent an enhanced three-dimensional, 3D, image, wherein each enhanced partial image is a two-dimensional, 2D, image associated with one of a plurality of focal planes. The image processing device includes processing circuitry configured to receive or generate a plurality of initial partial images, which together form an initial 3D image, wherein each initial partial image is a 2D image associated with one of the plurality of focal planes; and to generate, from each of the initial partial images, an enhanced partial image by generating a blurred version of the initial partial image; and blending the initial partial image with the blurred version of the initial partial image.

公开(公告)号：US20210144360A1

公开(公告)日：2021-05-13

申请号：US17156105

申请日：2021-01-22

Applicant: Huawei Technologies Co., Ltd.

Inventor： Atanas BOEV ,  Panji SETIAWAN ,  Bogdan Cihodariu IONITA

IPC: H04N13/322 ,  G02B3/14 ,  H04N13/398 ,  H04N13/194

Abstract: An image transmission device of a multifocal display system is described, for transmitting a set of N composite images based on a set of N primary images to an image reception device. N is greater or equal 2, and each of the N primary images has a focus distance associated therewith. The image transmission device includes processing circuitry configured to partition each of the N primary images into image portions and generate the N composite images by placing each image portion of each of the N primary images into one of the N composite images such that each of the N composite images comprises image portions from two or more of the N primary images. A communication interface transmits the N composite images to the image reception device (103).

公开(公告)号：US20200233120A1

公开(公告)日：2020-07-23

申请号：US16842494

申请日：2020-04-07

Applicant: Huawei Technologies Co., Ltd.

Inventor： Hector NAVARRO FRUCTUOSO ,  Panji SETIAWAN

IPC: G02B3/14 ,  G02B27/01

Abstract: A focus tunable optical system includes a lens assembly. The lens assembly includes: focus tunable lenses (FTLs) coaxially disposed along an optical axis, each FTL contributing to an optical power of the lens assembly; and a controller configured to control the optical power of the lens assembly by applying to each FTL a respective control signal, thereby generating a periodic optical response of the respective FTL. The optical response of each FTL is substantially different from the optical response of any other FTL of the plurality of FTLs.

公开(公告)号：US20200150379A1

公开(公告)日：2020-05-14

申请号：US16741849

申请日：2020-01-14

Applicant: Huawei Technologies Co., Ltd.

Inventor： Atanas BOEV ,  Panji SETIAWAN

IPC: G02B7/09 ,  G02B30/52

Abstract: A multifocal display device has a focus tunable lens, a controller, and a storage. The controller selectively tunes the focus of the lens to a plurality of focal planes of different index during a frame per A focal plane of lower index has a shorter focal distance. The storage stores a plurality of focal plane groups, each group including the plurality of focal planes in a different sequence. The controller selects a first group and tunes, during a first frame period, the focus of the lens to each one of the focal planes in the first group according to their sequence, and selects a second group from groups allowed by a selection rule, and tunes, during a second frame period, the focus of the lens to each one of the focal planes in the second group according to their sequence.

公开(公告)号：US20180061425A1

公开(公告)日：2018-03-01

申请号：US15797007

申请日：2017-10-30

Applicant: HUAWEI TECHNOLOGIES CO., LTD.

Inventor： Panji SETIAWAN ,  Karim HELWANI

IPC: G10L19/008 ,  H04S3/00

Abstract: The invention relates to audio signal processing apparatuses and methods, such as an audio signal downmixing apparatus (105) for processing an input audio signal comprising a plurality of input channels (113) into an output audio signal comprising a plurality of primary output channels (123) and at least one auxiliary output channel (125) using a downmix matrix D, wherein the downmix matrix D comprises a primary downmix matrix DU providing the plurality of primary output channels (123) and an auxiliary downmix matrix DW providing the at least one auxiliary output channel (125). The audio signal downmixing apparatus (105) comprises an auxiliary downmix matrix determiner (107) configured to determine the auxiliary downmix matrix DW, and a processor (109) configured to process the input audio signal into the output audio signal using the downmix matrix D.

公开(公告)号：US20220035168A1

公开(公告)日：2022-02-03

申请号：US17504340

申请日：2021-10-18

Applicant: Huawei Technologies Co., Ltd.

Inventor： Atanas BOEV ,  Hector NAVARRO FRUCTUOSO ,  Bogdan Cihodariu IONITA ,  Panji SETIAWAN

IPC: G02B27/01 ,  G02B27/14 ,  G02B26/08

Abstract: An optical system for a display device for head mounting is described. In particular a Maxwellian display device, with an enlarged eye-box is described. The optical system includes a beam forming element configured to converge multiple sets of light beams into at least two points of convergence (e.g., on an exit pupil of the optical system or of the display device using the optical system), and at least one optical arrangement comprising an input for input light beams, at least one beam splitter and at least three reflectors. The at least one beam splitter and at least three reflectors are positioned to form the multiple sets of the light beams from the input light beams such that the multiple sets of the light beams have equally long beam paths from the input to the beam forming element. Each point of convergence is a convergent viewing point for a user, thus enlarging the eye-box.

公开(公告)号：US20210120228A1

公开(公告)日：2021-04-22

申请号：US17136958

申请日：2020-12-29

Applicant: Huawei Technologies Co., Ltd.

Inventor： Tao LIN ,  Panji SETIAWAN

IPC: H04N13/395 ,  G02B30/52

Abstract: The invention relates to the technical field of Multifocal Plane Display (MFD) devices for displaying 3D images. In particular, the invention proposes a device for displaying a 3D image, wherein the 3D image is generated based on a 2D image and a depth map. The device includes a light source, a diffuser and a controller. The light source is configured to emit light beams, each light beam corresponding to a pixel of a 2D image. The diffuser is configured to diffuse the light beams, wherein the diffuser includes a plurality of diffuser elements distributed across a 3D volume, and each diffuser element is individually controllable to be transmissive or diffusive. The controller is configured to control each diffuser element to be transmissive or diffusive based on a depth map.