Transmission apparatus and receiving apparatus

Claim 2

A transmission apparatus comprising: signal source means for outputting audio/video data and synchronization signal; clock time generating means for generating a clock time; holding means for holding a clock time in response to said synchronization signal; transmission delay time generation means for generating a predetermined transmission delay time; adding means for adding said predetermined transmission delay time to the clock time held by the holding means and producing a timing information; and transmission means for transmitting said timing information together with the audio/video data.

Claim 3

A receiving apparatus for receiving audio/video data together with timing information from a transmission apparatus, said timing information being equal to a sum of a clock time of a synchronization signal as generated in the transmission apparatus and a predetermined transmission delay time, said receiving apparatus comprising: receiving means for receiving said audio/video data together with said timing information; clock time generating means for generating a clock time; first reference signal generating means for generating a first reference signal when said clock time matches with said timing information; second reference signal generating means for generating a second reference signal having a predetermined frequency; and phase correction means for correcting the phase of said second reference signal to be in-phase with said first reference signal, whereby said second reference signal is time-difference synchronized with said video signal frame synchronization signal by a time difference of said predetermined transmission delay time.

Claim 4

A receiving apparatus for receiving audio/video data together with timing information from a transmission apparatus, said timing information being equal to a sum of a clock time of a synchronization signal as generated in the transmission apparatus and a predetermined transmission delay time, said receiving apparatus comprising: receiving means for receiving said audio/video data together with said timing information; clock time generating means for generating a clock time; first reference signal generating means for generating a first reference signal when said clock time matches with said timing information; second reference signal generating means for generating a second reference signal having a predetermined frequency; and phase correction means for correcting the phase of said second reference signal to be in-phase with said first reference signal, whereby said second reference signal is time-difference synchronized with said video signal frame synchronization signal by a time difference of said predetermined transmission delay time.

Claim 5

A receiving apparatus for receiving audio/video data together with timing information from a transmission apparatus, said timing information being equal to a sum of a clock time of a synchronization signal as generated in the transmission apparatus and a predetermined transmission delay time, said receiving apparatus comprising: receiving means for receiving said audio/video data together with said timing information; memory means for storing said audio/video data; clock time generating means for generating a clock time; read out timing control means for producing a read out signal when said clock time coincides with said timing information, said audio/video data in said memory means being read out in response to said read out signal.

Claim 6

A receiving apparatus for receiving audio/video data together with timing information from a transmission apparatus, said timing information being equal to a sum of a clock time of a synchronization signal as generated in the transmission apparatus and a predetermined transmission delay time, said receiving apparatus comprising: receiving means for receiving said audio/video data together with said timing information; memory means for storing said audio/video data; clock time generating means for generating a clock time; read out timing control means for producing a read out signal when said clock time coincides with said timing information, said audio/video data in said memory means being read out in response to said read out signal.

Claim 7

A receiving apparatus according to claim 3, further comprising: a receiver delay time generation means for generating a predetermined receiver delay time; and adding means for adding said predetermined receiver delay time to said timing information and producing a sum signal, whereby said read out signal is produced when said clock time coincides with said sum signal.

Claim 10

A receiving apparatus according to claim 5 wherein said first reference signal generating means comprises a comparison means for comparing the clock time and said timing information.

Claim 11

A receiving apparatus according to claim 5 wherein said first reference signal generating means comprises: a receiver delay time generation means for generating a predetermined receiver delay time; adding means for adding said predetermined receiver delay time to said timing information and producing a sum signal; and a comparison means for comparing the clock time and said sum signal, whereby said second reference signal is time-difference synchronized with said synchronization signal by a time difference of said predetermined transmission delay time plus said predetermined receiver delay time.

Claim 12

A transmission apparatus comprising: signal source means for outputting audio/video data in blocks and block synchronization signal; carrier clock generating means for generating a carrier clock; counting means for counting the carrier clock and for producing a carrier clock time; first holding means for holding a carrier clock time in response to said block synchronization signal and for generating a first timing information; frequency dividing means for frequency dividing the carrier clock by a predetermined value and for producing a carrier clock reference signal; clock time generating means for generating a clock time; second holding means for holding a clock time in response to said carrier clock reference signal; transmission delay time generation means for generating a predetermined transmission delay time; adding means for adding said predetermined transmission delay time to the clock time held by the holding means and producing a second timing information; and transmission means for transmitting said first and second timing information together with the audio/video data in blocks.

Claim 13

A transmission apparatus comprising: signal source means for outputting audio/video data in blocks and block synchronization signal; carrier clock generating means for generating a carrier clock; counting means for counting the carrier clock and for producing a carrier clock time; first holding means for holding a carrier clock time in response to said block synchronization signal and for generating a first timing information; frequency dividing means for frequency dividing the carrier clock by a predetermined value and for producing a carrier clock reference signal; clock time generating means for generating a clock time; second holding means for holding a clock time in response to said carrier clock reference signal; transmission delay time generation means for generating a predetermined transmission delay time; adding means for adding said predetermined transmission delay time to the clock time held by the holding means and producing a second timing information; and transmission means for transmitting said first and second timing information together with the audio/video data in blocks.

Claim 14

A receiving apparatus for receiving audio/video data together with first and second timing information from a transmission apparatus, said first timing information being equal to a synchronization signal as generated in the transmission apparatus, and said second timing information being equal to a sum of a clock time and a predetermined transmission delay time as generated in the transmission apparatus, said receiving apparatus comprising: receiving means for receiving said audio/video data together with said first and second timing information; clock time generating means for generating a clock time; carrier clock reconstructing means for reconstructing the carrier clock time from said second timing information with reference to said clock time; counting means for counting the carrier clock time; memory means for storing said audio/video data received by the receiving means; and read out timing control means for producing a read out signal when said carrier clock time coincides with said second timing information, said audio/video data in said memory means being read out in response to said read out signal.

Claim 15

A receiving apparatus for receiving audio/video data together with first and second timing information from a transmission apparatus, said first timing information being equal to a synchronization signal as generated in the transmission apparatus, and said second timing information being equal to a sum of a clock time and a predetermined transmission delay time as generated in the transmission apparatus, said receiving apparatus comprising: receiving means for receiving said audio/video data together with said first and second timing information; clock time generating means for generating a clock time; carrier clock reconstructing means for reconstructing the carrier clock time from said second timing information with reference to said clock time; counting means for counting the carrier clock time; memory means for storing said audio/video data received by the receiving means; and read out timing control means for producing a read out signal when said carrier clock time coincides with said second timing information, said audio/video data in said memory means being read out in response to said read out signal.

Claim 16

A receiving apparatus according to claim 9, wherein said carrier clock reconstructing means comprises: reference signal generation means for generating a base signal when said clock time coincides with said first timing information; carrier clock generating means for generating a carrier clock; frequency dividing means for frequency dividing the carrier clock by a predetermined value and for producing a carrier clock reference signal; and phase correction means for correcting the phase of said carrier clock reference signal to be in-phase with said base signal, whereby said carrier clock time is time-difference synchronized with said carrier clock time in the transmission apparatus by a time difference of said predetermined transmission delay time.

Claim 17

A receiving apparatus according to claim 9, wherein said carrier clock reconstructing means comprises: a receiver delay time generation means for generating a predetermined receiver delay time; adding means for adding said predetermined receiver delay time to said first timing information and producing a sum signal; reference signal generation means for generating a base signal when said clock time coincides with said sum signal; carrier clock generating means for generating a carrier clock; frequency dividing means for frequency dividing the carrier clock by a predetermined value and for producing a carrier clock reference signal; and phase correction means for correcting the phase of said carrier clock reference signal to be in-phase with said base signal, whereby said carrier clock time is time-difference synchronized with said carrier clock time in the transmission apparatus by a time difference of said predetermined transmission delay time plus said predetermined receiver delay time.

Claim 18

A transmission apparatus comprising: signal source means for outputting audio/video data and synchronization signal; clock time generating means for generating a clock time; holding means for holding a clock time in response to said synchronization signal; transmission delay time generation means for generating a predetermined transmission delay time, said predetermined transmission delay time being a sum of a maximum packetizing time and a maximum arbitration delay time; adding means for adding said predetermined transmission delay time to the clock time held by the holding means and producing a timing information; and transmission means for transmitting said timing information together with the audio/video data.

Claim 19

A transmission apparatus comprising: signal source means for outputting audio/video data and synchronization signal; clock time generating means for generating a clock time; holding means for holding a clock time in response to said synchronization signal; transmission delay time generation means for generating a predetermined transmission delay time, said predetermined transmission delay time being a sum of a maximum packetizing time and a maximum arbitration delay time; adding means for adding said predetermined transmission delay time to the clock time held by the holding means and producing a timing information; and transmission means for transmitting said timing information together with the audio/video data.

Claim 20

A transmission apparatus comprising: signal source means for outputting audio/video data and synchronization signal; clock time generating means for generating a clock time; holding means for holding a clock time in response to said synchronization signal; transmission delay time generation means for generating a predetermined transmission delay time, said predetermined transmission delay time being a maximum packetizing time; adding means for adding said predetermined transmission delay time to the clock time held by the holding means and producing a timing information; and transmission means for transmitting said timing information together with the audio/video data.

Claim 21

A transmission apparatus comprising: signal source means for outputting audio/video data and synchronization signal; clock time generating means for generating a clock time; holding means for holding a clock time in response to said synchronization signal; transmission delay time generation means for generating a predetermined transmission delay time, said predetermined transmission delay time being a maximum packetizing time; adding means for adding said predetermined transmission delay time to the clock time held by the holding means and producing a timing information; and transmission means for transmitting said timing information together with the audio/video data.

Claim 22

A receiving apparatus for receiving audio/video data together with timing information from a transmission apparatus, said timing information being equal to a sum of a clock time of a synchronization signal as generated in the transmission apparatus and a predetermined transmission delay time, said receiving apparatus comprising: receiving means for receiving said audio/video data together with said timing information; clock time generating means for generating a clock time; first reference signal generating means for generating a first reference signal when said clock time matches with said timing information, said first reference signal generating means comprising a comparison means for comparing the clock time and said timing information; second reference signal generating means for generating a second reference signal having a predetermined frequency; and phase correction means for correcting the phase of said second reference signal to be in-phase with said first reference signal, whereby said second reference signal is time-difference synchronized with said video signal frame synchronization signal by a time difference of said predetermined transmission delay time.

Claim 23

A receiving apparatus for receiving audio/video data together with timing information from a transmission apparatus, said timing information being equal to a sum of a clock time of a synchronization signal as generated in the transmission apparatus and a predetermined transmission delay time, said receiving apparatus comprising: receiving means for receiving said audio/video data together with said timing information; clock time generating means for generating a clock time; first reference signal generating means for generating a first reference signal when said clock time matches with said timing information, said first reference signal generating means comprising a comparison means for comparing the clock time and said timing information; second reference signal generating means for generating a second reference signal having a predetermined frequency; and phase correction means for correcting the phase of said second reference signal to be in-phase with said first reference signal, whereby said second reference signal is time-difference synchronized with said video signal frame synchronization signal by a time difference of said predetermined transmission delay time.

Claim 24

A receiving apparatus for receiving audio/video data together with timing information from a transmission apparatus, said timing information being equal to a sum of a clock time of a synchronization signal as generated in the transmission apparatus and a predetermined transmission delay time, said receiving apparatus comprising: receiving means for receiving said audio/video data together with said timing information; clock time generating means for generating a clock time; first reference signal generating means for generating a first reference signal when said clock time matches with said timing information, said first reference signal generating means comprising: a receiver delay time generation means for generating a predetermined receiver delay time; adding means for adding said predetermined receiver delay time to said timing information and producing a sum signal; and comparison means for comparing the clock time and said sum signal, whereby said second reference signal is time-difference synchronized with said video signal frame synchronization signal by a time difference of said predetermined transmission delay time plus said predetermined receiver delay time; second reference signal generating means for generating a second reference signal having a predetermined frequency; and phase correction means for correcting the phase of said second reference signal to be in-phase with said first reference signal, whereby said second reference signal is time-difference synchronized with said video signal frame synchronization signal by a time difference of said predetermined transmission delay time.

Claim 25

A receiving apparatus for receiving audio/video data together with timing information from a transmission apparatus, said timing information being equal to a sum of a clock time of a synchronization signal as generated in the transmission apparatus and a predetermined transmission delay time, said receiving apparatus comprising: receiving means for receiving said audio/video data together with said timing information; clock time generating means for generating a clock time; first reference signal generating means for generating a first reference signal when said clock time matches with said timing information, said first reference signal generating means comprising: a receiver delay time generation means for generating a predetermined receiver delay time; adding means for adding said predetermined receiver delay time to said timing information and producing a sum signal; and comparison means for comparing the clock time and said sum signal, whereby said second reference signal is time-difference synchronized with said video signal frame synchronization signal by a time difference of said predetermined transmission delay time plus said predetermined receiver delay time; second reference signal generating means for generating a second reference signal having a predetermined frequency; and phase correction means for correcting the phase of said second reference signal to be in-phase with said first reference signal, whereby said second reference signal is time-difference synchronized with said video signal frame synchronization signal by a time difference of said predetermined transmission delay time.