摘要:
Conference systems are used for example in discussions and usually comprise a plurality of delegate units with microphones, whereby in a discussion each discussion participant uses his own delegate unit. Usually the delegate units have a switch or the like, that allows the participant in front of the delegate unit to request, that his microphone is activated, so that the speech of the participant is input in the conference system and amplified by the conference system. A conference system comprising (1) a plurality of delegate units (2), each delegate unit (2) having a microphone (5) for receiving an audio signal from a surrounding, a central service module (3) handling a plurality of contribution channels, whereby the audio output of the contribution channels contribute to an amplified audio output of the conference system (1) is proposed, whereby each delegate unit (2) is adapted to send a request for a contribution channel commit to the central service module (3), whereby the central service module (2) is adapted to grant the request and to allocate a contribution channel to the requesting delegate unit (2), thus setting the requesting delegate unit i in an active state A, whereby the delegate unit (2) is adapted to trigger the request by voice activation, whereby the request is triggered in case at least a first trigger condition is fulfilled defining that the audio signal level of one of the delegate units (2) as a possible requesting delegate unit i is higher than an individual test value for each other delegate unit (2) in the active state A, whereby the individual test value is an estimated audio signal level of the possible requesting unit i resulting from an audio or speech signal provided to the other active delegate units (2).
摘要:
A delay unit (16) for a conference audio system (1) adapted to delay audio input signals for an adjustable time delay, thereby generating audio output signals, is proposed. The delay unit (16) comprising a circular buffer (17); a write pointer (W) to write a sample (S1) of a first input signal to the circular buffer (17) at a first write position; a read pointer (R) to read a sample from the circular buffer (17) at a first read position as a sample of a first output signal, whereby the distance between the first write position and the first read position determines a first time delay d old ;a buffer controlmodule adapted to move the write pointer Wto a next position after writingand to move theread pointer (R) to a next position after reading; characterized in that the buffer control moduleis adapted to adjust a second time delay d new by movingthe writepointer (W) to a second write position, whereby the distance between the firstread position and the second write position determines the second timedelay d new .
摘要:
In a method for running a computer network (2) comprising a number of devices (4a-d) being arranged in a daisy-chained loop and running a spanning-tree algorithm (10) involving handling of state machines (14), wherein each device (4a-d) comprises a bridge (6a-d) having at least three ports (8a-c), whereby during running the network (2) each device (4a-d) can take different states (D, L, F, O) to avoid a loop in the network (2), whereby logical port states (D, L, F, O) of the ports are defined by the state machines (14), for at least one device (4a-d) at least once before a reboot of the device (4a-d) a momentary state (S) of a state machine (14) is stored, and in case of rebooting the state (D, L, F, O, S) of the device (4a-d) is restored, if it is successfully validated that the stored state (S) is still valid. A Computer network (2), comprising a number of devices (4a-d) being arranged in a daisy-chained loop is adapted for performing the method above.
摘要:
Conference systems are used for example in discussions and usually comprise a plurality of delegate units with microphones, whereby in a discussion each discussion participant uses his own delegate unit. Usually the delegate units have a switch or the like, that allows the participant in front of the delegate unit to request, that his microphone is activated, so that the speech of the participant is input in the conference system and amplified by the conference system. A conference system comprising (1) a plurality of delegate units (2), each delegate unit (2) having a microphone (5) for receiving an audio signal from a surrounding, a central service module (3) handling a plurality of contribution channels, whereby the audio output of the contribution channels contribute to an amplified audio output of the conference system (1) is proposed, whereby each delegate unit (2) is adapted to send a request for a contribution channel commit to the central service module (3), whereby the central service module (2) is adapted to grant the request and to allocate a contribution channel to the requesting delegate unit (2), thus setting the requesting delegate unit i in an active state A, whereby the delegate unit (2) is adapted to trigger the request by voice activation, whereby the request is triggered in case at least a first trigger condition is fulfilled defining that the audio signal level of one of the delegate units (2) as a possible requesting delegate unit i is higher than an individual test value for each other delegate unit (2) in the active state A, whereby the individual test value is an estimated audio signal level of the possible requesting unit i resulting from an audio or speech signal provided to the other active delegate units (2).
摘要翻译:会议系统例如在讨论中使用,并且通常包括具有麦克风的多个代表单元,由此在讨论中每个讨论参与者使用他自己的委托单元。 通常,代表单元具有开关等,允许代表单元前面的参与者请求麦克风被激活,使得参与者的语音被输入会议系统并被会议系统放大。 一种会议系统,包括(1)多个代表单元(2),每个代表单元(2)具有麦克风(5),用于从周围接收音频信号;中央服务模块(3),处理多个贡献通道 ,由此提出贡献通道的音频输出对会议系统(1)的放大的音频输出有贡献,由此每个代表单元(2)适于向中央服务模块(3)发送贡献通道提交的请求 ),由此中央服务模块(2)适于授权该请求并向请求委托单元(2)分配贡献信道,从而将请求委托单元i设置为活动状态A,由此委托单元(2 )适于通过语音激活来触发请求,由此在满足至少第一触发条件的情况下触发该请求,从而将代表单元(2)中的一个的音频信号电平定义为可能的请求委托u 对于处于活动状态A的每个其他委托单元(2),i i i高于单独的测试值,由此单独的测试值是由提供给该测试值的音频或语音信号产生的可能请求单元i的估计音频信号电平 其他活动代表单位(2)。
摘要:
The invention provides for a method of encoding data and a method for decoding encrypted and authenticity protected data. Furthermore, the invention provides for an encoding and a decoding equipment. For encoding the data is encrypted by using AES encryption (16, 52) and authenticity protected by calculating a CMAC algorithm (26) over the data.
摘要:
Conference audio systems are widely known and are usually used in political or economic debates, at fairs and wherever a plurality of people discuss with each other supported by a microphone-amplifier-loudspeaker system. In known systems each delegate of a conference has a seat with a working table in which the microphone and the loudspeaker is integrated. A conference audio system is proposed comprising a plurality of delegate units (2), each delegate unit (2) having a delegate loudspeaker (5) and/or a delegate microphone (4), a control means (3, 15) for distributing at least one audio signal from at least one of the delegate microphones (4) or another sound source to a plurality of the delegate loudspeakers (5), the plurality of delegate loudspeakers (5) generating a common audio atmosphere, delay means (16) operable to add a time delay on the audio signal, whereby the time delay is dependent from the distance between the position of the delegate microphone (4) or sound source, respectively, generating the audio signal and the individual delegate loudspeaker (5) position.
摘要:
In a method for miming a computer network (2) comprising a number of devices (4a-d) comprising at least one network port (6a-c) and being interconnected by network links (8a-c) connecting two respective ports (6a-c), wherein each of the network ports (6a-c) is running the LLDP protocol (9) and comprises a remote MIB (10a-c), a change of a physical state (up, down) of a network link (8a-c) triggers an update of the information in the remote MIB (10a-c) of the ports (6a-c) associated with this link (8a-c), especially immediately after the change of the physical state (up, down). A computer network (2) comprising a number of devices (4a-d) comprising at least one network port (6a-c) and being interconnected by network links (8a-c) connecting two respective ports (6a-c), wherein each of the network ports (6a-c) is running the LLDP protocol (9) and comprises a remote MIB (10a-c) is adapted for performing the above method.