EP0703713A2
Expired / Lapsed
EP
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Packet receiving device
Assignee: Sony Corp
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Filing: 1995-09-20
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Granted: —
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Expires: 2015-09-20
Abstract
Abstract An apparatus for receiving and decoding a packet of a multiplexed stream whose data are coded to a predetermined format, including temporary storing means for compensating for the difference between the timing of the received packet and the read-in timing of the coded data by a decoder, means for producing a clock signal serving as a reference to operate the decoder on the basis of a reference signal in the format, and means for calculating the position of the reference signal using a time which is periodically added to the packet.
Inventors
- 👤 Tomohisa Shiga
Bibliographic Details
Application Number
—
Jurisdiction
EP
Data Source
google_patents
Last Synchronized
2026-11-04 08:18
CPC Classifications
H; H04; H04L; H04L12/00; H04L12/28; H04L12/40; H04L12/40052; H04L12/40058; H04L12/40117; H04N; H04N21/00; H04N21/40; H04N21/41; H04N21/426; H04N21/43; H04N21/4302; H04N21/4305; H04N21/436; H04N21/4363; H04N21/43632; H04N5/00; H04N5/76; H04N5/765; H04N5/77; H04N5/775; H04N7/00; H04N7/24; H04N7/52; H04N7/54; H04N21/4104; H04N21/4135; H04N21/422; H04N21/4223
Claims Analysis
Total Claims: 7
Claim 1
Independent Claim
91 words
An apparatus for receiving and decoding a packet of a multiplexed stream whose data are coded to a predetermined format, including: temporary storing means for compensating for the difference between the timing of the received packet and the read-in timing of the coded data by a decoder; means for producing a clock signal serving as a reference to operate the decoder on the basis of a reference signal in the format; and means for calculating the position of the reference signal using a time which is periodically added to the packet.
Claim 2
Dependent Claim
27 words
The apparatus as claimed in claim 1, wherein a data stream of a single program extracted from the received packet is written in said temporary storing means.
Claim 3
Dependent Claim
26 words
The apparatus as claimed in claim 2, wherein the data stream extracted from the received packet is supplied to the decoder through said temporary storing means.
Claim 4
Dependent Claim
23 words
The apparatus as claimed in claim 3, wherein said means of producing the clock signal to operate the decoder has a single PLL.
Claim 5
Dependent Claim
77 words
The apparatus as claimed in claim 4, wherein said means of calculating the position of the reference signal comprises first means for calculating the time difference from the time until the reference signal on the basis of the position information in the predetermined format of the data extracted from the received packet and the periodical position information in the stream, and second means for converting the time difference into the number of clocks in a transmission path.
Claim 6
Dependent Claim
67 words
The apparatus as claimed in claim 5, wherein said second means comprises a first counter for counting the clock signal of the data stream, a second counter for counting the clock signal in the transmission path, and a latch for latching the output value of said second counter when the time difference calculated by said first means is coincident with the output value of said first counter.
Claim 7
Dependent Claim
26 words
Apparatus according to any one of the preceding claims, and including an IEEE P1394 - compliant bus over which the multiplexed stream of data is communicated.
References Cited (Backward Citations)
No citation records indexed.
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