公开(公告)号：US07930726B2

公开(公告)日：2011-04-19

申请号：US11947670

申请日：2007-11-29

Applicant: Jae Cheol Sim ,  Kee Seong Cho

Inventor： Jae Cheol Sim ,  Kee Seong Cho

IPC: H04N7/173

CPC classification number: H04N21/435 ,  H04N7/17318 ,  H04N21/235 ,  H04N21/26283 ,  H04N21/438 ,  H04N21/64322

Abstract: Provided are an IPTV service system and a method thereof. The IPTV service system includes: a headend, a set-top box, and a plurality of multicast routers. The headend assigns a multicast group address for each channel and assigns a source address for each PID with respect to an MPEG-TS and packetizes the MPEG-TS into a plurality of packet streams. The set-top box identifies a user-selected channel and the necessary elementary streams in the MPEG-TS for the selected channel, and requests selective reception of only packet streams corresponding to the selected channel and the necessary elementary streams from the plurality of packet streams. The plurality of multicast routers form a multicast path between the headend and the set-top box. Accordingly, while services such as a multi-angle service, a multi-lingual service, a mosaic EPG service, and a personalized EPG service are realized in one multicast control method together with viewing of a general broadcasting channel, efficient use of bandwidth can be achieved.

Abstract translation: 提供IPTV服务系统及其方法。 IPTV服务系统包括头端，机顶盒和多个组播路由器。 头端为每个通道分配多播组地址，并为每个PID分配关于MPEG-TS的源地址，并将MPEG-TS分组成多个分组流。 机顶盒识别所选频道的MPEG-TS中的用户选择的信道和必要的基本流，并且仅从多个分组流请求仅选择对应于所选择的信道的分组流和必要的基本流 。 多个组播路由器在前端和机顶盒之间形成多播路径。 因此，在一个组播控制方法中，与观看一般的广播信道一起实现诸如多角度服务，多语言服务，马赛克EPG服务和个性化EPG服务的服务，可以有效地使用带宽 实现了

公开(公告)号：US08010911B2

公开(公告)日：2011-08-30

申请号：US11604488

申请日：2006-11-27

Applicant: Jong Moo Sohn ,  Jae Cheol Sim ,  Kee Seong Cho

Inventor： Jong Moo Sohn ,  Jae Cheol Sim ,  Kee Seong Cho

IPC: G06F3/033

CPC classification number: G06F3/0346 ,  G06F3/017 ,  G06F2200/1637

Abstract: A command input method makes use of a three-dimensional motion recognition device embodied with an inertia system and is particularly directed to extend the total number of inputable commands using initial posture information as well as movement pattern of a motion recognition device. The command input method includes the steps of: determining initial posture at start point when movement of the motion recognition device is generated; determining a pattern of the movement at the end of the movement; and deciding a command from the determined initial posture and the movement pattern. Since the three-dimensional spatial motion can be further differentiated into different commands by the initial posture of the input device, the command input system can be simplified in structure with less number of recognizable motions.

Abstract translation: 命令输入法利用惯性系统体现的三维运动识别装置，特别涉及使用运动识别装置的初始姿态信息以及运动模式来扩展可输入命令的总数。 命令输入方法包括以下步骤：当生成运动识别装置的移动时，确定起始点处的初始姿势; 确定运动结束时运动的模式; 以及从确定的初始姿势和运动模式确定命令。 由于可以通过输入装置的初始姿态将三维空间运动进一步区分成不同的命令，所以能够以较少的识别运动的结构简化命令输入系统。

公开(公告)号：US07796819B2

公开(公告)日：2010-09-14

申请号：US11633180

申请日：2006-12-04

Applicant: Jae Cheol Sim ,  Jong Moo Sohn ,  Kee Seong Cho

Inventor： Jae Cheol Sim ,  Jong Moo Sohn ,  Kee Seong Cho

IPC: G06K9/46 ,  G06K9/00

CPC classification number: G06K9/224

Abstract: Provided are an apparatus and method for character recognition that analyze three-dimensional motion of a user using an acceleration sensor and thereby perform character input and character recognition. The apparatus and method easily discern each stroke on the basis of a direction of motion at the beginning portion and end portion of the stroke, and recognize a character using a combination of the strokes, thereby enabling realization of a small-sized motion-based character input system.

Abstract translation: 提供了一种用于字符识别的装置和方法，其分析使用加速度传感器的用户的三维运动，从而执行字符输入和字符识别。 该装置和方法基于行程的开始部分和末端部分的运动方向容易地辨别每个笔划，并且使用笔划的组合识别字符，从而能够实现基于小型运动的字符 输入系统。