Abstract:
A lighting tool for setting lighting parameters of a plurality of light sources (1). A processor (2) is provided which is connectable to the plurality of light sources (1), and arranged to control lighting parameters of each of the plurality of light sources (1). A position storage unit (3) is connected to the processor (2) for storing spatial positions of the plurality of light sources (1). A camera arrangement (4) is connected to the processor (2) for providing a view of at least part of a scene illuminated by the plurality of light sources (1). The processor (2) is arranged to correlate a viewing area of the camera arrangement (4) and a retrieved spatial position of one or more of the plurality of light sources (1).
Abstract:
A relative flux sensor (122) and a method of characterizing characteristics of light emitters are provided. The relative flux sensor (122) comprises a color point sensor(108) and a sensor color (118). The color point sensor (108) measures a color point in a color space of light emitted by a light source (101) comprising a first light emitter (102) for emitting light of a first color and a second light emitter (114) for emitting light of a second color being different from the first color. The light source (101) is arranged for emitting light of a controllable color,being a mix of light of the first color and light of the second color. The sensor controller (118) is coupled to the color point sensor (108) for receiving a measuring signal and is arranged for i)providing a first signal to the light source (101), the first signal comprising a dimming factor D1 and a dimming factor D2, the dimming factor D1 and the dimming factor D2 indicating a fraction of a maximum flux of the first light emitter(102) and the second light emitter (114), respectively, and receiving the measuring signal representing a first color point when the light source (101) emits light according to the first signal, wherein at least one of the dimming factors D1 and D2 is different from 0, ii) providing a second signal to the light source (101), the second signal comprising a dimming factor D4 and a dimming factor D5, the dimming factor D4 and the dimming factor D indicating a fraction of the maximum flux of the first light emitter (102) and the second light emitter (114), respectively, and receiving the measuring signal representing a second color point when the light source (101) emits light according to the second signal, wherein both dimming factors D4 and D5 are different from 0, iii) calculating within a model of the color 20 space a ratio between a maximum flux of the first light emitter (102) and a maximum flux of the second light emitter (114) on the basis of the first color point, the second color point, the dimming factors D1, D2, D4 and D5.
Abstract:
A wireless network system (10) and a method of operating a wireless network system (10) is described. The wireless network system (10) comprises at least a control device (1) and a function device (21, 21 ', 21 "). The control device (1) being configured to send an application control command to said function device (21, 21 ', 21 ") with a first network address (AD1) and the function device (21, 21 ', 21 ") being configured upon reception of said application control command to send an acknowledgement signal to said control device (1). The control device (1) sends conflict information to said function device (21, 21 ', 21 ") in case more than one acknowledgement signal is received, and said function device (21, 21 ', 21 ") upon reception of said conflict information stores a second network address (AD2), different from said first network address (AD1) in said device configuration memory (28), so that said function device (21, 21 ', 21 ") is addressable in said network system (10) using said second network address (AD2).
Abstract:
The present invention relates to an optical recording apparatus that provides improved writing speed. The apparatus has processing means (50) for processing an encoded data signal (NRZ) with a channel clock frequency signal (CLK). A first clock generator (52) derives a sub-sampled clock signal (CLKn) that has a lower frequency than the channel clock frequency signal (CLK). Furthermore, a modulator (MOD) modulates the sub-sampled clock signal (CLKn) with the encoded data signal (NRZ), and outputs a single, combined data and clock signal (NRZ_CLKn). This signal is received by the optical pick-up unit (OPU;20), where a second clock generator (24) extracts a retrieved clock signal (CLKr) from the combined signal (NRZ_CLKn), and a data demodulator (23) extracts the encoded data signal (NRZ) using the retrieved clock signal (CLKr). Thereby, a fast and reliable bandwidth in the communication between the processing means and the optical pick-up (OPU; 20) is obtained.
Abstract:
A device for recording information on a record carrier (11) has a radiation source and a sensor (33) for generating a sense signal (32), a power control unit (29) for setting the radiation power based on a sampled sense signal, and a sense unit (31) for generating the sampled sense signal. The sense signal is sampled at Ts in periods that are selected on having at least a selected minimum length Lsel in a end part of the selected periods. The sense signal is sampled in the selected control periods for determining a second sample value on a detection time Tdet different from Ts. A difference is determined between the first and the second sample value, and, in dependence on the difference, generating the sampled sense signal is adapted. In particular Lsel may be adapted in dependence on the difference for eliminating remaining effects of a preceding period at a higher power.
Abstract:
A relative flux sensor (122) and a method of characterizing characteristics of light emitters are provided. The relative flux sensor (122) comprises a color point sensor(108) and a sensor color (118). The color point sensor (108) measures a color point in a color space of light emitted by a light source (101) comprising a first light emitter (102) for emitting light of a first color and a second light emitter (114) for emitting light of a second color being different from the first color. The light source (101) is arranged for emitting light of a controllable color,being a mix of light of the first color and light of the second color. The sensor controller (118) is coupled to the color point sensor (108) for receiving a measuring signal and is arranged for i)providing a first signal to the light source (101), the first signal comprising a dimming factor D1 and a dimming factor D2, the dimming factor D1 and the dimming factor D2 indicating a fraction of a maximum flux of the first light emitter(102) and the second light emitter (114), respectively, and receiving the measuring signal representing a first color point when the light source (101) emits light according to the first signal, wherein at least one of the dimming factors D1 and D2 is different from 0, ii) providing a second signal to the light source (101), the second signal comprising a dimming factor D4 and a dimming factor D5, the dimming factor D4 and the dimming factor D indicating a fraction of the maximum flux of the first light emitter (102) and the second light emitter (114), respectively, and receiving the measuring signal representing a second color point when the light source (101) emits light according to the second signal, wherein both dimming factors D4 and D5 are different from 0, iii) calculating within a model of the color 20 space a ratio between a maximum flux of the first light emitter (102) and a maximum flux of the second light emitter (114) on the basis of the first color point, the second color point, the dimming factors D1, D2, D4 and D5.
Abstract:
A remote controller is arranged for selecting a light source among a plurality of light sources. The remote controller has an omnidirectional transmitter and is arranged to instruct, by means of the omnidirectional transmitter, the light sources to transmit a directional signal comprising a code, which is unique for each light source. Further, the remote controller has a directional signal receiver, and is arranged to receive the directional signals from the light sources, and signal comparison circuitry connected with the directional signal receiver. The remote controller is arranged to select one of the light sources on basis of the received directional signals. Furthermore, the remote controller comprises a transmission indicator, which is arranged to generate an indication signal, indicative of a successful omnidirectional transmission, and it is arranged to initiate the selection of one of the light sources by means of the indication signal.
Abstract:
The present invention relates to an optical recording apparatus that provides improved writing speed. The apparatus has processing means (50) for processing an encoded data signal (NRZ) with a channel clock frequency signal (CLK). A first clock generator (52) derives a sub-sampled clock signal (CLKn) that has a lower frequency than the channel clock frequency signal (CLK). Furthermore, a modulator (MOD) modulates the sub-sampled clock signal (CLKn) with the encoded data signal (NRZ), and outputs a single, combined data and clock signal (NRZ_CLKn). This signal is received by the optical pick-up unit (OPU;20), where a second clock generator (24) extracts a retrieved clock signal (CLKr) from the combined signal (NRZ_CLKn), and a data demodulator (23) extracts the encoded data signal (NRZ) using the retrieved clock signal (CLKr). Thereby, a fast and reliable bandwidth in the communication between the processing means and the optical pick-up (OPU; 20) is obtained.
Abstract:
A lighting tool for setting lighting parameters of a plurality of light sources (1). A processor (2) is provided which is connectable to the plurality of light sources (1), and arranged to control lighting parameters of each of the plurality of light sources (1). A position storage unit (3) is connected to the processor (2) for storing spatial positions of the plurality of light sources (1). A camera arrangement (4) is connected to the processor (2) for providing a view of at least part of a scene illuminated by the plurality of light sources (1). The processor (2) is arranged to correlate a viewing area of the camera arrangement (4) and a retrieved spatial position of one or more of the plurality of light sources (1).
Abstract:
A network communication system (2) comprises: a controlled network device (11) comprising a communication facility (16) for receiving a command signal (Sc); at least one remote control (20) for controlling at least one of the network devices (11), the remote control comprising a communication facility (26) for receiving and transmitting signals; one coordinator (40) comprising a communication facility (46) for receiving and transmitting signals, and a network definition memory (47) containing network definition information defining the network and the relationship between network components. The remote control comprises a backup memory (27) containing a backup copy of the network definition information. The remote control is capable of operating in a restoration mode in which the remote control transmits a restoration signal (SR) containing the network definition information from the backup memory. The coordinator is responsive to the restoration signal by storing the received network definition information into its network definition memory.