Bo K Han

7940850, May 10, 2011

May 9, 2008

12/151815

Lusheng Ji - Randolph NJ, US
Samrat Bhattacharjee - Silver Spring MD, US
Bo Han - College Park MD, US
Seungjoon Lee - Springfield NJ, US
Robert Miller - Convent Station NJ, US

H04K 1/10
H04L 27/28

375260, 375261, 375262, 375265, 375349, 375257, 455501, 455504, 455 631, 455 65

In applications where data is transmitted in frames of symbols and the transmission medium is such that the probability of correct reception of symbols is, on the average, not uniform for different symbols in a frame, transmission of test frames enables creation of information about the different probabilities of correct reception, and that information is employed by the transmitter to control the manner in which symbols are transmitted so as to ameliorate the effects of the different probabilities of correct reception.

8483077, Jul 9, 2013

Sep 16, 2009

12/561130

Lusheng Ji - Randolph NJ, US
Bo Han - College Park MD, US

AT&T Intellectual Property I, L.P. - Atlanta GA

H04W 40/12

370252, 370392, 370437, 709228

A path configuration message is sent to nodes in a multi-hop network along a path between a source node and destination nodes. The path configuration message includes path information and one or more special channel access parameters associated with the path information. The path configuration message temporarily changes the channel access priority for packets matching the path information in the special message. The nodes along the path therefore have higher channel access priority relative to other nearby nodes and other traffic flows. At the end of the a length of a time determined by a time to live parameter in the special message, the nodes resume using default channel access parameters in place of the special channel access parameters for packets matching the path information.

20100157961, Jun 24, 2010

Dec 22, 2008

12/341557

Lusheng Ji - Randolph NJ, US
Bo Han - College Park MD, US

AT&T INTELLECTUAL PROPERTY I, L.P. - Reno NV

H04W 72/12
H04W 84/12

370338

In one or more embodiments of the disclosed technology, an Access Point (AP) schedules communication traffic flows or service tasks between an Access Point (AP) and one or more member stations in a Wireless Local Area Network (WLAN). The communication traffic flows or service tasks may include both control and management flows and data traffic flows. The communication traffic flows or service tasks may include traffic flows or streams of different types, each of which may have different service intervals. The order of service tasks can be changed from cycle to cycle, randomly, by rotation, or based on historical delay records.

20220254113, Aug 11, 2022

Apr 25, 2022

17/660620

- Atlanta GA, US
David Crawford Gibbon - Lincroft NJ, US
Bo Han - Bridgewater NJ, US
Eric Zavesky - Austin TX, US

G06T 19/00
G06F 3/01
G02B 27/01
G06V 20/20

A processing system of a mobile device may determine the device's predicted viewport, which defines a portion of a real world environment that is expected to be visible to the device's user at a future time. The processing system may determine a set of extended reality anchors that are present in the real world environment, where each anchor stores a digital object that, when rendered by the device and presented to the user simultaneously with the real world environment, creates extended reality media. The processing system may remove a first subset anchors from the set, where locations of anchors in the first subset fall outside a threshold distance from the predicted viewport. The removing results in a second subset of anchors remaining in the set. The processing system may download a digital object from a second device, where the digital object is stored by an anchor of the second subset.

20220239896, Jul 28, 2022

Apr 12, 2022

17/718370

- Atlanta GA, US
Bo Han - Bridgewater NJ, US
Eric Zavesky - Austin TX, US

AT&T Intellectual Property I, L.P. - Atlanta GA

H04N 13/395
H04N 13/117
G06F 3/04815
H04N 21/6587
H04N 21/81

Aspects of the subject disclosure may include, for example, transmitting viewpoint information associated with a first portion of a three-dimensional (3D)/volumetric video to a device, wherein the viewpoint information comprises a first coordinate in 3D space associated with a first viewing direction in a playback of the first portion and a first timestamp associated with the first portion, receiving, from the device, a multiplane image (MPI) representation of a second portion of the 3D video responsive to the transmitting of the viewpoint information, and providing an image of the MPI representation to a display device. Other embodiments are disclosed.

20210279768, Sep 9, 2021

Mar 9, 2020

16/812486

- Atlanta GA, US
Bo Han - Bridgewater NJ, US
Eric Zavesky - Austin TX, US

AT&T Intellectual Property I, L.P. - Atlanta GA

G06Q 30/02
G06T 19/00
H04W 4/02

Aspects of the subject disclosure may include, for example, obtaining an identification of a device capability associated with a client device that is presenting a first scene that includes a first physical object and a first virtual object, determining a first location of the client device, responsive to the determining of the first location, obtaining an output from a sensor that is located within a threshold distance of the first location, processing the output from the sensor to identify a second virtual object in accordance with the identification of the device capability, and transmitting first data associated with the second virtual object to cause the client device to present the first physical object and the second virtual object in a second scene. Other embodiments are disclosed.

20210256938, Aug 19, 2021

Feb 17, 2020

16/792397

- Atlanta GA, US
Bo Han - Bridgewater NJ, US
Eric Zavesky - Austin TX, US

AT&T Intellectual Property I, L.P. - Atlanta GA

G09G 5/377
H04L 29/06
G06Q 30/02

Aspects of the subject disclosure may include, for example, presenting a first virtual object in accordance with a first context associated with a first user engaged in a communication session via a first application, presenting a second virtual object in accordance with a second context associated with a second user engaged in the communication session via a second application, identifying a conflict between the presenting of the first virtual object and the presenting of the second virtual object, a presenting of a physical object, or a combination thereof, and responsive to the identifying of the conflict, modifying the first virtual object, the second virtual object, or a combination thereof. Other embodiments are disclosed.

20210258821, Aug 19, 2021

Feb 19, 2020

16/795033

- Atlanta GA, US
Rittwik Jana - Montville NJ, US
Bo Han - Bridgewater NJ, US
Bo Chen - Champaign IL, US

H04W 28/02
H04L 12/801
H04L 12/859
H04L 12/841
H04L 12/26
A63F 13/355

The described technology is generally directed towards a transport protocol for latency sensitive applications. The disclosed transport protocol is “semi-reliable” in that it allows for specification of an importance of data being transmitted, thereby allowing important data to be sent reliably, while other data can be dropped if necessary, e.g., under bad network conditions. A deadline can be specified for such other data, and if the other data cannot be sent prior to the deadline, it can be dropped. Furthermore, the disclosed transport protocol can allow for early discovery of network jitter. A client device can send regular acknowledgments which identify most recently received data packets as well as a number of “heartbeat transmissions” received at the client device. A server device can use the acknowledgments to discover and respond to jitter.