公开(公告)号：EP1518376A1

公开(公告)日：2005-03-30

申请号：EP03761472.4

申请日：2003-06-17

申请人： Thomson Licensing S.A.

发明人： HEIGHWAY, Timothy ,  GAEDKE, Klaus ,  SCHWEIDLER, Siegfried

IPC分类号： H04L12/64

CPC分类号： H04L12/40058 ,  H04L12/40078 ,  H04L12/403 ,  H04L29/06 ,  H04L69/18

摘要： According to the IEEE1394 bus protocol manage the mixed data transfer in one cycle it is specified that the bus nodes having only asochronous data to transfer need to wait with their transmission requests until the end of isochronous data transfers in the cycle indicated with a sub-action gap. The invention aims to improve the efficiency of data transport for the case that one of the bus nodes need to transfer isochronous data. The data link layer devices according to the invention includes means for checking whether isochronous data is to be transferred and if not they switch over to a no cycle master state, in which the local cycle synchronization events are ignored. The nodes need not wait for a sub-action gap after a local cycle event before drawing asynchronous transmission requests.

公开(公告)号：EP1468534A1

公开(公告)日：2004-10-20

申请号：EP03708053.8

申请日：2003-01-11

申请人： Thomson Licensing S.A.

发明人： HAUPT, Dieter ,  GAEDKE, Klaus ,  SCHWEIDLER, Siegfried

IPC分类号： H04L12/64

CPC分类号： H04L12/40078 ,  H04L12/40091 ,  H04L12/4011 ,  H04L12/64

摘要： The invention deals with a physical layer circuit (21) for the IEEE1394 bus. Considered is a scenario where two clusters of 1394 devices are linked to each other by means of a wireless bridge (9). The devices of one cluster shall communicate with devices of the other cluster without being bridge aware. Under this scenario there are two different types of 1394 devices existing in each cluster. One device is a bridge portal and will have the bridge functionality. All the other 1394 devices in the cluster will not have the bridge functionality. As the device having the bridge functionality needs to have a specific buffer memory (22) for buffering node-ID packets, usually there are two different types of physical layer circuits required for the different types of 1394 devices. The invention deals with the problem of how it can be realized to use in both different types of 1394 devices the same type of physical layer circuit (21). The invention solves the problem by means of configuration means (24) in the physical layer circuit (21). These configuration means enable either to configure the physical layer circuit (21) as a bridge portal physical layer circuit supporting the bridge functionality by buffering said node-ID packets in said buffer memory (22) or else configuring the physical layer circuit (21) as a standard physical layer circuit that disables the buffering of said node-ID packets. The new type of physical layer circuit is pin compatible with a standard physical layer circuit.

公开(公告)号：EP1327326A1

公开(公告)日：2003-07-16

申请号：EP01987985.7

申请日：2001-10-18

申请人： Thomson Licensing S.A.

发明人： STRAUB, Gilles ,  VINCENT, Christophe ,  BURKLIN, Helmut ,  GAEDKE, Klaus ,  BICHOT, Guillaume ,  BURDIN, Nicolas ,  PERROT, Sébastien

IPC分类号： H04L12/28

CPC分类号： H04L12/4011 ,  H04L12/40091 ,  H04L12/4625 ,  H04L12/64 ,  H04L41/0806 ,  H04L41/12

摘要： Method for connecting an IEEE1394 remote device (1) to a cluster of IEEE1394 devices through a wireless link (3) comprising a first wireless device (WBox1) connected to the cluster and a second wireless device (WBox2) connected to the remote device (1), wherein the remote device and the first wireless device for a first wired bus and the device cluster and the second wireless device form a second wired bus. The method comprises the steps of, representing the remote device (1) on the cluster through the first wireless device (WBox1) and representing the devices of the cluster to the remote device (1) through the second wireless device (WBox2), such that the remote device and the devices of the cluster function as if these devices were part of a single IEEE1394 bus.

公开(公告)号：EP1198909A1

公开(公告)日：2002-04-24

申请号：EP00953025.4

申请日：2000-07-07

申请人： Thomson Licensing S.A.

发明人： GAEDKE, Klaus ,  SCHÜTZE, Herbert

IPC分类号： H04B10/00

CPC分类号： H04L25/0266 ,  H04B10/802

摘要： An electrical insulation device for bidirectional connecting lines (CTL[0:1], D[0:7]) is proposed which operates reliably at high frequencies and can be integrated easily on a chip. In accordance with a first embodiment, for the purpose of electrical isolation, two separate optocouplers (311, 312) are provided per bidirectional connecting line. A control unit (33) evaluates the control signals which are output by one of the two circuit units (10, 20), and thereupon activates one of the two optocouplers while the other optocoupler is simultaneously deactivated, in order, in this way, to allow transmission of signals via the associated connecting line in one direction. In a second embodiment of the invention, only a single optocoupler is provided per bidirectional connecting line. The control unit (33) is provided in this solution as well, except that in this case it changes over the effective direction of the optocoupler by means of corresponding circuit components (32), thereby once again achieving transmission of signals via the associated connecting line in one direction.

公开(公告)号：EP1198909B1

公开(公告)日：2003-09-17

申请号：EP00953025.4

申请日：2000-07-07

申请人： Thomson Licensing S.A.

发明人： GAEDKE, Klaus ,  SCHÜTZE, Herbert

IPC分类号： H04B10/00

CPC分类号： H04L25/0266 ,  H04B10/802

摘要： An electrical insulation device for bidirectional connecting lines (CTL[0:1], D[0:7]) is proposed which operates reliably at high frequencies and can be integrated easily on a chip. In accordance with a first embodiment, for the purpose of electrical isolation, two separate optocouplers (311, 312) are provided per bidirectional connecting line. A control unit (33) evaluates the control signals which are output by one of the two circuit units (10, 20), and thereupon activates one of the two optocouplers while the other optocoupler is simultaneously deactivated, in order, in this way, to allow transmission of signals via the associated connecting line in one direction. In a second embodiment of the invention, only a single optocoupler is provided per bidirectional connecting line. The control unit (33) is provided in this solution as well, except that in this case it changes over the effective direction of the optocoupler by means of corresponding circuit components (32), thereby once again achieving transmission of signals via the associated connecting line in one direction.

公开(公告)号：EP1433047A2

公开(公告)日：2004-06-30

申请号：EP02772322.0

申请日：2002-09-19

申请人： Thomson Licensing S.A.

发明人： BORSUM, Malte ,  GAEDKE, Klaus ,  BRUNE, Thomas

IPC分类号： G06F5/06

CPC分类号： G06F5/10 ,  G06F5/065 ,  H04L47/621 ,  H04L49/90 ,  H04L49/9031 ,  H04L49/9036

摘要： So-called LCH packets are defined in the Hiperlan Type 2 System for wire-free transmission of video and audio data streams. These LCH packets have a length of 54 data bytes. Furthermore, the Hiperlan/2 Standard provides for so-called ARQ messages to be sent back to the transmitter in an SCH packet in a QOS mode (Quality Of Service), in which all the LCH data packets must be confirmed by the receiver. Space for the LCH and SCH data packets must be provided in a buffer store (143) in the Hiperlan/2 interface for each connection that is set up. When there is a possibility of several hundred connections having been set up, separate reservation of memory areas for LCH and SCH packets would involve considerable complexity for the memory organization.The invention proposes that only one common area be reserved for LCH and SCH packets in the buffer store (143). The section which is provided for each LCH package is of such a size that it corresponds to a value 2n where Nî[0,1,2,3,...], and this results in the hardware unit for the address calculation of these data section starts being greatly simplified. However, the area is chosen to be larger than actually required for the buffer storage of one LCH packet. The SCH packets, which likewise need to be buffer-stored, are entered in the unused part of such a section for an LCH packet. This considerably reduces the complexity for memory organization without having to leave a major proportion of the memory unused.

公开(公告)号：EP1163597B1

公开(公告)日：2003-07-02

申请号：EP00912599.8

申请日：2000-03-13

申请人： Thomson Licensing S.A.

发明人： SCHWEIDLER, Siegfried ,  HEIGHWAY, Timothy ,  GAEDKE, Klaus

IPC分类号： G06F13/38

CPC分类号： H04L12/40058 ,  H04L12/40071 ,  H04L49/90

摘要： The format of the transmission of isochronous data packets via the IEEE 1394 bus is defined in the IEC 61883 Standard. In this case, it is possible to use an operating mode in which the same number of data blocks (DB0-DB7) is always transmitted in a bus packet. In this case, the memory management is extremely simple and the data source packet boundaries can easily be determined. However, the IEC 61883 standard also leaves open the possibility of transmitting a variable number of data blocks (DB0-DB7) in the context of isochronous data transmission with the aid of bus packets. In this case, however, subsequently ascertaining the data source packet boundaries poses a problem. The invention specifies a solution, favourable in terms of outlay, as to how the data source packet boundaries can easily be reconstructed. It is based essentially on modulo-n counting of data blocks (DB0-DB7).

公开(公告)号：EP1282960A2

公开(公告)日：2003-02-12

申请号：EP01940485.4

申请日：2001-05-15

申请人： Thomson Licensing S.A.

发明人： STRAUB, Gilles ,  PERROT, Sébastien ,  GAEDKE, Klaus

IPC分类号： H04L12/28 ,  H04L29/06

CPC分类号： H04W28/26 ,  H04L12/40065 ,  H04L12/6418

摘要： Method for reserving isochronous resources in a wireless network comprising at least a wireless source device and a wireless sink device, said wireless network being based on a TDMA frame transmission scheme, said method comprising the steps of: providing an output plug in said wireless source device, said output plug being associated with an output plug register, wherein said output plug register defines a maximum amount of data output by said output plug during a wireless frame; reserving an amount of bandwidth corresponding to said maximum amount of data to be sent in a wireless frame with an isochronous resource manager of the wireless network.

公开(公告)号：EP1282959A2

公开(公告)日：2003-02-12

申请号：EP01938223.3

申请日：2001-05-15

申请人： Thomson Licensing S.A.

发明人： STRAUB, Gilles ,  PERROT, Sébastien ,  GAEDKE, Klaus

IPC分类号： H04L12/28 ,  H04L29/06

CPC分类号： H04W28/06 ,  H04L12/40058 ,  H04L12/40071 ,  H04L12/4011 ,  H04L29/06027 ,  H04L65/607 ,  H04N21/43632 ,  H04N21/43637 ,  H04N21/6131

摘要： Method for isochronous data packet transport over a wireless network, comprising the steps of: collecting a plurality of isochronous data packets at a service specific convergence sublayer (SSCS) of a wireless source device; posting said plurality of isochronous data packets as a whole to a common part convergence sub-layer (CPCS) of the wireless source device, wherein said plurality of isochronous data packets posted to the common part convergence sub-layer corresponds to the amount of isochronous data packets generated by a transmitter over a 2ms period.

公开(公告)号：EP1171825A2

公开(公告)日：2002-01-16

申请号：EP00960211.1

申请日：2000-03-20

申请人： Thomson Licensing S.A.

发明人： HEIGHWAY, Timothy ,  GAEDKE, Klaus ,  SCHWEIDLER, Siegfried

IPC分类号： G06F13/42

CPC分类号： H04L12/40058 ,  H04L12/40071 ,  H04L12/40117 ,  Y10S370/912

摘要： The format of the transmission of isochronous data packets via the IEEE 1394 bus is defined in the IEC 61883 Standard. A bus packet used to transmit the data has a header (1394H) at the beginning, which header describes the format of the bus packet. This is then followed by an isochronous data format header (CIPH), which defines the data format of the useful data in the useful packet. The invention is concerned with the problem of compiling a bus packet for transmission via the 1394 bus. In the case of the invention, this is done in such a way that when the isochronous data transmission is set up, the isochronous data format header (CIPH) prescribed by the application is written both to a special register (38) that is provided and to the buffer memory (32) for the bus packets and the useful data are attached thereto. As a result, it is then possible that a data transmitting section (35) has to take the data to be transmitted, including the isochronous data format header (CIPH), only from the buffer memory (32). A multiplex operation joining together the data and the isochronous data format header (CIPH) need not then be effected for the transmission of the data.