RU2000114165A - SYSTEM AND METHOD FOR SUPPORTING TIME SYNCHRONIZATION IN A DIGITAL VIDEO NETWORK - Google Patents

SYSTEM AND METHOD FOR SUPPORTING TIME SYNCHRONIZATION IN A DIGITAL VIDEO NETWORK

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Publication number
RU2000114165A
RU2000114165A RU2000114165/09A RU2000114165A RU2000114165A RU 2000114165 A RU2000114165 A RU 2000114165A RU 2000114165/09 A RU2000114165/09 A RU 2000114165/09A RU 2000114165 A RU2000114165 A RU 2000114165A RU 2000114165 A RU2000114165 A RU 2000114165A
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Russia
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specified
channel
counter
signal
telephone
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RU2000114165/09A
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Russian (ru)
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RU2222116C2 (en
Inventor
Питер Х. ЛОРЕНС
Брайан В. ДАНН
Матью А. ЭШЛЕМАН
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Джорджиа Теч Ресерч Корпорейшн
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Claims (16)

1. Система для поддержания синхронизации по времени в системе передачи цифрового видео, включающая фильтр, сконфигурированный для приема группы программ, содержащей несколько программ, и выделения по меньшей мере одной из указанных программ, буфер, поддерживающий связь с указанным фильтром, устройство извлечения ссылки на программные тактовые импульсы (PCR), поддерживающее связь с указанным фильтром, и сконфигурированное для извлечения значения PCR из указанной программы, счетчик, взаимодействующий с указанным устройством PCR, сконфигурированный для приема указанного значения PCR и увеличения указанного значения PCR в течение тактового цикла, и мультиплексор. имеющий соединение с указанным счетчиком, и сконфигурированный для приема выходного сигнала указанного буфера и указанного счетчика.1. A system for maintaining time synchronization in a digital video transmission system, including a filter configured to receive a group of programs containing several programs and allocate at least one of these programs, a buffer that communicates with the specified filter, a program link extractor clock pulses (PCR), communicating with the specified filter, and configured to extract the PCR value from the specified program, the counter that interacts with the specified PCR device is configured a bath for receiving said PCR value and increasing said PCR value during a clock cycle; and a multiplexer. having a connection with the specified counter, and configured to receive the output signal of the specified buffer and the specified counter. 2. Система по п. 1, отличающаяся тем, что указанное устройство извлечения PCR сконфигурировано для копирования указанного значения PCR из по меньшей мере одной указанной программы в указанный счетчик. 2. The system of claim 1, wherein said PCR extraction device is configured to copy said PCR value from at least one said program to said counter. 3. Система по п. 2, отличающаяся тем, что указанный счетчик сконфигурирован для перезаписи указанного значения PCR в по меньшей мере одну указанную программу. 3. The system according to claim 2, characterized in that said counter is configured to overwrite the specified PCR value into at least one specified program. 4. Система по п. 2, отличающаяся тем, что указанный мультиплексор сконфигурирован для добавления к выходному сигналу указанного буфера и указанного счетчика по меньшей мере одного двунаправленного канала данных. 4. The system of claim 2, wherein said multiplexer is configured to add at least one bi-directional data channel to said buffer and said counter. 5. Система по п. 2, отличающаяся тем, что указанный мультиплексор сконфигурирован для добавления к выходному сигналу указанного буфера и указанного счетчика по меньшей мере одного телефонного канала. 5. The system of claim 2, wherein said multiplexer is configured to add at least one telephone channel to said buffer and said counter. 6. Система по п. 2, отличающаяся тем, что указанный мультиплексор сконфигурирован для добавления к выходному сигналу указанного буфера и указанного счетчика по меньшей мере одного двунаправленного канала данных и по меньшей мере одного телефонного канала. 6. The system of claim 2, wherein said multiplexer is configured to add at least one bi-directional data channel and at least one telephone channel to said buffer and said counter. 7. Система по п. 2, отличающаяся тем, что дополнительно включает в себя демультиплексор, сконфигурированный для приема и выделения по меньшей мере одного двунаправленного канала данных и по меньшей мере одного телефонного канала. 7. The system according to claim 2, characterized in that it further includes a demultiplexer configured to receive and allocate at least one bi-directional data channel and at least one telephone channel. 8. Способ поддержания синхронизации по времени в системе передачи цифрового видео, включающий следующие этапы, а именно прием в фильтре транспортного потока цифрового видео, состоящего из множества пакетов и содержащего несколько программ, каждая из которых имеет значение ссылки синхронизации, фильтрацию указанного транспортного потока для выделения по меньшей мере одной желаемой программы из указанных нескольких программ, передачу указанной желаемой программы в буфер и контроль указанной программы для обнаружения наличия указанного пригодного значения ссылки синхронизации в указанных пакетах, копирование указанного значения ссылки синхронизации в счетчик, добавление в указанном счетчике значения количества времени нахождения указанной желаемой программы в указанном буфере, передачу указанного значения ссылки синхронизации в мультиплексор, и перезапись указанного значения ссылки синхронизации в указанной желаемой программе на выходе данной программы из указанного буфера. 8. A method for maintaining time synchronization in a digital video transmission system, comprising the following steps, namely, receiving in a filter a transport stream of a digital video consisting of a plurality of packets and containing several programs, each of which has a synchronization link value, filtering said transport stream to highlight at least one desired program from the specified several programs, transferring the specified desired program to the buffer and monitoring the specified program to detect the presence of the specified a suitable value of the synchronization link in the specified packages, copying the specified value of the synchronization link to the counter, adding the value of the amount of time the specified desired program spent in the specified buffer to the specified counter, transferring the specified value of the synchronization link to the multiplexer, and overwriting the specified value of the synchronization link in the specified desired program on the output of this program from the specified buffer. 9. Способ по п. 8, отличающийся тем, что включает этап объединения в указанном мультиплексоре указанной желаемой программы и по меньшей мере одного двунаправленного канала данных. 9. The method according to p. 8, characterized in that it includes the step of combining in the specified multiplexer of the specified desired program and at least one bi-directional data channel. 10. Способ по п. 8, отличающийся тем, что включает этап объединения в указанном мультиплексоре указанной желаемой программы и по меньшей мере одного телефонного канала. 10. The method according to p. 8, characterized in that it includes the step of combining in the specified multiplexer of the specified desired program and at least one telephone channel. 11. Способ по п. 8, отличающийся тем, что включает этап объединения в указанном мультиплексоре указанной желаемой программы, по меньшей мере одного двунаправленного канала данных и по меньшей мере одного телефонного канала. 11. The method according to p. 8, characterized in that it includes the step of combining in the specified multiplexer of the specified desired program, at least one bi-directional data channel and at least one telephone channel. 12. Способ по п. 8, отличающийся тем, что включает этап приема в демультиплексоре по меньшей мере одного двунаправленного канала данных и по меньшей мере одного телефонного канала. 12. The method according to p. 8, characterized in that it includes the step of receiving in the demultiplexer at least one bi-directional data channel and at least one telephone channel. 13. Способ по п. 12, отличающийся тем, что включает этап выделения по меньшей мере одного указанного двунаправленного канала данных и по меньшей мере одного указанного телефонного канала. 13. The method according to p. 12, characterized in that it includes the step of allocating at least one specified bidirectional data channel and at least one specified telephone channel. 14. Способ передачи видеосигнала, сигнала двунаправленных данных и телефонного канала, включающий следующие этапы, а именно прием в приемопередатчике сигнала, содержащего видеосигнал, сигнал двунаправленных данных, телефонный сигнал и канал управления, выделение указанного видеосигнала, указанного сигнала двунаправленных данных, указанного телефонного сигнала и указанного канала управления, маршрутизацию указанного видеосигнала на видеодекодер, маршрутизацию указанного сигнала двунаправленных данных на интерфейс данных, маршрутизацию указанного телефонного сигнала на телефон, и маршрутизацию указанного канала управления на процессор. 14. A method for transmitting a video signal, a bi-directional data signal, and a telephone channel, comprising the following steps, namely, receiving a signal containing a video signal, a bi-directional data signal, a telephone signal and a control channel in a transceiver, extracting said video signal, said bi-directional data signal, said telephone signal, and the specified control channel, routing the specified video signal to the video decoder, routing the specified bidirectional data signal to the data interface, router tion telephone signal of said mobile phone, and routing said control channel processor. 15. Способ по п. 14, отличающийся тем, что включает следующие этапы, а именно уплотнение указанного сигнала двунаправленных данных и указанного канала управления и передачу указанных уплотненных сигналов на приемопередатчик. 15. The method according to p. 14, characterized in that it includes the following steps, namely, multiplexing said bi-directional data signal and said control channel and transmitting said compressed signals to a transceiver. 16. Способ по п. 14, отличающийся тем, что указанный канал управления обеспечивается путем применения неиспользуемого бита в потоке данных MPEG-2, что позволяет пользователю обмениваться информацией управления через указанный приемопередатчик. 16. The method according to p. 14, characterized in that said control channel is provided by applying an unused bit in the MPEG-2 data stream, which allows the user to exchange control information through said transceiver.
RU2000114165/09A 1997-11-04 1998-11-04 System and method for maintaining time synchronization in digital video network RU2222116C2 (en)

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US6415397P 1997-11-04 1997-11-04
US60/064,153 1997-11-04

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EP (2) EP1034658A4 (en)
JP (2) JP2001522208A (en)
KR (2) KR20010031833A (en)
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AU (4) AU758166B2 (en)
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RU (2) RU2220512C2 (en)
TR (2) TR200001230T2 (en)
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