1. An information recording device comprising:
a coder for coding an inputted information signal;
a rate controller for controlling a coding rate of the coder in accordance with complexity of the information signal and controlling a coding amount per unit time in the coding process so that an average value of the coding amount can be approximate to an average rate which is previously set;
a temporary memory unit for temporarily memorizing the coded data; and
a recorder for recording the data memorized in the temporary memory unit on a recording medium, wherein
the recorder measures a recording rate in the recording process,
the rate controller adjusts the average rate to be below the recording rate measured by the recorder such that the coding amount to be allocated to a high complexity region of the information signal increases, while the coding amount to be allocated to a less complexity region of the information signal is reduced,
when the recorder detects that the recording medium as a current recording object is exchanged, the recorder informs the rate controller of the exchange, and
the rate controller resets the average rate to an initial value which is previously set when the rate controller receives the notice of the exchange of the recording medium.
2. An information recording device comprising:
a coder for coding an inputted information signal;
a rate controller for controlling a coding rate of the coder in accordance with complexity of the information signal and controlling a coding amount per unit time in the coding process so that an average value of the coding amount can be approximate to an average rate which is previously set;
a temporary memory unit for temporarily memorizing the coded data;
a recorder for recording the data memorized in the temporary memory unit on a recording medium; and
a reproducer for reading information written in the recording medium, wherein
the recorder measures a recording rate in the recording process,
the rate controller adjusts the average rate to be below the recording rate measured by the recorder such that the coding amount to be allocated to a high complexity region of the information signal increases, while the coding amount to be allocated to a less complexity region of the information signal is reduced,
the recorder writes the average rate set by the rate controller in the recording medium,
the reproducer reads the average rate from the recording medium when the recording medium is set in the information recording device,
the rate controller sets the average rate read by the reproducer as an initial value of the average rate of the recording medium in which the relevant average rate is written, and
the average rate set in the recording medium in a previous recording process is thereby used as the initial value of the average rate when the recording medium is subjected to a rerecording process.
3. An information recording device comprising:
a coder for coding an inputted information signal;
a rate controller for controlling a coding rate of the coder in accordance with complexity of the information signal and controlling a coding amount per unit time in the coding process so that an average value of the coding amount can be approximate to an average rate which is previously set;
a temporary memory unit for temporarily memorizing the coded data; and
a recorder for recording the data memorized in the temporary memory unit on a recording medium, wherein
the recorder measures a recording rate in the recording process,
the rate controller adjusts the average rate to be below the recording rate measured by the recorder such that the coding amount to be allocated to a high complexity region of the information signal increases, while the coding amount to be allocated to a less complexity region of the information signal is reduced,
the information recording device, further comprising:
a reproducer for reading individual identification information of the recording medium written in the recording medium; and
a memory unit for associating the recording rate of the recording medium measured by the recorder with the individual identification information of the recording medium read by the reproducer and memorizing the associated recording rate, wherein
the rate controller reads the recording rate associated with the individual identification information read by the reproducer from the recorder and sets the recording rate as an initial value of the recording rate of the recording medium, and
the recording rate set in the recording medium in a previous recording process is thereby used as the initial value of the recording rate when the recording medium is subjected to a rerecording process.
4. An information recording device, comprising:
a coder for coding an inputted information signal;
a rate controller for controlling a coding rate of the coder in accordance with complexity of the information signal and controlling a coding amount per unit time in the coding process so that an average value of the coding amount can be approximate to an average rate which is previously set;
a temporary memory unit for temporarily memorizing the coded data;
a recorder for recording the data memorized in the temporary memory unit on a recording medium;
a reproducer for reading individual identification information of the recording medium written in the recording medium; and
a memory unit for associating the average rate of the recording medium set by the rate controller with the individual identification information of the recording medium read by the reproducer and memorizing the associated average rate, wherein
the recorder measures a recording rate in the recording process,
the rate controller adjusts the average rate to be below the recording rate measured by the recorder such that the coding amount to be allocated to a high complexity region of the information signal increases, while the coding amount to be allocated to a less complexity region of the information signal is reduced,
the rate controller reads the average rate associated with the individual identification information read by the reproducer from the recorder and sets the average rate as an initial value of the average rate of the recording medium, and
the average rate set in the recording medium in a previous recording process is thereby used as the initial value of the average rate when the recording medium is subjected to a rerecording process.
5. An information recording device comprising:
a coder for coding an inputted information signal;
a rate controller for controlling a coding rate of the coder in accordance with complexity of the information signal and controlling a coding amount per unit time in the coding process so that an average value of the coding amount can be approximate to an average rate which is previously set;
a temporary memory unit for temporarily memorizing the coded data; and
a recorder for recording the data memorized in the temporary memory unit on a recording medium, wherein
the rate controller compares a threshold value of a used amount of the temporary memory unit which is previously set and an actually used amount of the temporary memory unit and reduces the average rate when the used amount exceeds the threshold value,
when the recorder detects that the recording medium as a current recording object is exchanged, the recorder notifies the rate controller of the exchange, and
the rate controller resets the average rate to an initial value which is previously set when the rate controller receives the notice of the exchange of the recording medium.
6. An information recording device comprising:
a coder for coding an inputted information signal;
a rate controller for controlling a coding rate of the coder in accordance with complexity of the information signal and controlling a coding amount per unit time in the coding process so that an average value of the coding amount can be approximate to an average rate which is previously set;
a temporary memory unit for temporarily memorizing the coded data;
a recorder for recording the data memorized in the temporary memory unit on a recording medium; and
a reproducer for reading information written in the recording medium, wherein
the rate controller compares a threshold value of a used amount of the temporary memory unit which is previously set and an actually used amount of the temporary memory unit and reduces the average rate when the used amount exceeds the threshold value,
the recorder writes the average rate set by the rate controller in the recording medium,
the reproducer reads the average rate from the recording medium when the recording medium is set in the information recording device,
the rate controller sets the average rate read by the reproducer as an initial value of the average rate of the recording medium in which the relevant average rate is written, and
the average rate set in the recording medium in a previous recording process is thereby used as the initial value of the average rate when the recording medium is subjected to a rerecording process.
7. An information recording device comprising:
a coder for coding an inputted information signal;
a rate controller for controlling a coding rate of the coder in accordance with complexity of the information signal and controlling a coding amount per unit time in the coding process so that an average value of the coding amount can be approximate to an average rate which is previously set;
a temporary memory unit for temporarily memorizing the coded data;
a recorder for recording the data memorized in the temporary memory unit on a recording medium;
a reproducer for reading individual identification information of the recording medium written in the recording medium; and
a memory unit for associating the average rate of the recording medium set by the rate controller with the individual identification information of the recording medium read by the reproducer and memorizing the associated average rate, wherein
the rate controller compares a threshold value of a used amount of the temporary memory unit which is previously set and an actually used amount of the temporary memory unit and reduces the average rate when the used amount exceeds the threshold value,
the rate controller reads the average rate associated with the individual identification information read by the reproducer from the recorder and sets the average rate as an initial value of the average rate of the recording medium, and
the average rate set in the recording medium in a previous recording process is thereby used as the initial value of the average rate when the recording medium is subjected to a rerecording process.
8. An information transmitting device comprising:
a coder for coding an inputted information signal;
a rate controller for controlling a coding rate of the coder in accordance with complexity of the information signal and controlling a coding amount per unit time in the coding process so that an average value of the coding amount can be approximate to an average rate which is previously set;
a temporary memory unit for temporarily memorizing the coded data; and
a transmitter for transmitting the data memorized in the temporary memory unit to a transmission line, wherein
the transmitter measures a transmission rate in the transmission, and
the rate controller adjusts the average rate so that the average rate is below the transmission rate measured by the transmitter.
9. An information transmitting device as claimed in claim 8, wherein the transmitter calculates the transmission rate from a response time between the transmitter and the transmission line.
10. An information transmitting device as claimed in claim 8, wherein the transmitter calculates the transmission rate from a data volume transmitted to the transmission line and a time length required for transmitting the data volume.
11. An information transmitting device as claimed in claim 8, wherein the transmitter uses a transmission rate set when the transmission line is established as the transmission rate of the transmission line.
12. An information transmitting device as claimed in claim 8, wherein the transmitter serially renews the transmission rate from a relevant response time each time when the coded data is transmitted to the transmission line.
13. An information transmitting device as claimed in claim 12, wherein the rate controller serially renews the coding average rate based on the transmission rate serially renewed in the transmitter.
14. An information transmitting device as claimed in claim 8, wherein the transmitter previously carries out a transmission test before the coded data is transmitted to the transmission line and calculates the transmission rate from a relevant response time.
15. An information transmitting device as claimed in claim 8, wherein the rate controller sets the average rate which is newly set at a value lower than an initial value of the average rate in adjusting the average rate.
The claims below are in addition to those above.
All refrences to claim(s) which appear below refer to the numbering after this setence.
1. A loudspeaker soundbar comprising:
an enclosure;
a first Bessel Array of electroacoustic transducers coupled to the enclosure to be driven by a first channel signal; and
a second Bessel Array of electroacoustic transducers coupled to the enclosure to be driven by a second channel signal;
wherein the first and second Bessel Arrays are substantially collinear.
2. The loudspeaker soundbar of claim 1 wherein:
the first Bessel Array and the second Bessel Array overlap and share an electroacoustic transducer at adjacent end positions of the first and second Bessel Arrays.
3. The loudspeaker soundbar of claim 2 wherein:
the shared electroacoustic transducer comprises a dual voice coil electromagnetic transducer having a first voice coil wired with the first Bessel Array and a second voice coil wired with the second Bessel Array.
4. The loudspeaker soundbar of claim 3 wherein:
the first Bessel Array comprises a first Reduced Bessel Array; and
the second Bessel Array comprises a second Reduced Bessel Array.
5. The loudspeaker soundbar of claim 4 wherein:
from the first Reduced Bessel Array is omitted a transducer at an end opposite the second Reduced Bessel Array; and
from the second Reduced Bessel Array is omitted a transducer at an end opposite the first Reduced Bessel Array.
6. The loudspeaker soundbar of claim 1 wherein:
a third Bessel Array of electroacoustic transducers coupled to the enclosure to be driven by a third channel signal;
wherein the first, second, and third Bessel Arrays are substantially collinear and the third Bessel Array is disposed between the first and second Bessel Arrays;
wherein the first channel signal comprises a left channel signal, the second channel signal comprises a right channel signal, and the third channel signal comprises a center channel signal.
7. The loudspeaker soundbar of claim 6 wherein:
the first Bessel Array and the third Bessel Array overlap and share an electroacoustic transducer at adjacent end positions of the first and third Bessel Arrays; and
the third Bessel Array and the second Bessel array overlap and share an electroacoustic transducer at adjacent end positions of the third and second Bessel Arrays.
8. The loudspeaker soundbar of claim 7 wherein:
the electroacoustic transducer shared by the first and third Bessel Arrays comprises a dual voice coil electromagnetic transducer having a first voice coil wired with the first Bessel Array and a second voice coil wired with the third Bessel Array; and
the electroacoustic transducer shared by the third and second Bessel Arrays comprises a dual voice coil electromagnetic transducer having a first voice coil wired with the third Bessel Array and a second voice coil wired with the second Bessel Array.
9. The loudspeaker soundbar of claim 8 wherein:
the first Bessel Array comprises a first Reduced Bessel Array; and
the second Bessel Array comprises a second Reduced Bessel Array.
10. The loudspeaker soundbar of claim 9 wherein:
from the first Reduced Bessel Array is omitted a transducer at an end opposite the third Reduced Bessel Array; and
from the second Reduced Bessel Array is omitted a transducer at an end opposite the third Reduced Bessel Array.
11. The loudspeaker soundbar of claim 1 wherein the enclosure comprises:
a television.
12. The loudspeaker soundbar of claim 1 wherein the enclosure comprises:
a television stand.
13. The loudspeaker soundbar of claim 1 wherein the enclosure comprises:
a video display.
13. The loudspeaker soundbar of claim 1 wherein the enclosure comprises:
a computer monitor.
14. The loudspeaker soundbar of claim 1 wherein:
the first Bessel Array comprises a first null-element Bessel Array;
the second Bessel Array comprises a second null-element Bessel Array; and
the loudspeaker soundbar further comprises a third transducer coupled at a zero position of the first null-element Bessel Array and a fourth transducer coupled at a zero position of the second null-element Bessel Array;
wherein the third and fourth transducers operate in a frequency range substantially above a frequency range in which the first and second null-element Bessel Arrays operate.
15. The loudspeaker soundbar of claim 1 wherein:
the first and second Bessel Arrays are configured as Improved Bessel Arrays, such that each of them includes a transducer at an opposite phase Bessel position which operates opposite phase in a high frequency range and in phase in a low frequency range.
16. The loudspeaker soundbar of claim 1 wherein:
the first and second Bessel Arrays are configured as Super Bessel Arrays, such that each of them includes a transducer at a half amplitude Bessel position which operates at half amplitude in a high frequency range and at substantially full amplitude in a low frequency range.
17. A video display apparatus comprising:
a body;
a display panel coupled to the body; and
a soundbar coupled to the body and including,
a left channel Bessel Array of electroacoustic transducers, and
a right channel Bessel Array of electroacoustic transducers.
18. The video display apparatus of claim 17 wherein:
the left and right channel Bessel Arrays share an electroacoustic transducer.
19. The video display apparatus of claim 17 wherein:
the left channel Bessel Array comprises a Reduced Bessel Array; and
the right channel Bessel Array comprises a Reduced Bessel Array.
20. The video display apparatus of claim 17 wherein the soundbar further includes:
a center channel Bessel Array of electroacoustic transducers.
21. The video display apparatus of claim 20 wherein:
the left and center channel Bessel Arrays share an electroacoustic transducer; and
the center and right channel Bessel Arrays share an electroacoustic transducer.