F-Term-List

H04S1/00-7/00,400

AA00
OBJECTIVES AND EFFECTS

AA01

AA02

AA04

AA05

AA06

AA07

AA08

AA09

AA10

. Improving reproduction formats*

. . Transforming between reproduction formats

. Improving reproduction quality*

. . Improving presence

. . Improving spatial feeling

. . Improving sound image location effects

. . Enlarging audible ranges (sweet spot)

. . Improving sound quality

. . Removing noise or distortion

AA11

AA13

AA14

AA15

AA16

AA17

AA18

AA19

(Not Translated)

. Improving reproduction systems*

. . Synchronizing video systems (lip-synching)

. . Matching positions of images and sound images

. . Improving operability

. . Automating controlling or settings

. . Simplifying systems

. . Reducing system costs

BA00
INPUT SIGNALS AND THEIR PROCESSING

BA01

BA02

BA03

BA05

BA06

BA07

BA08

BA09

BA10

. Coded signals*

. . MPEG-1 or MPEG-2

. . MPEG-4

. Number of channels

. . One channel

. . Two channels

. . Three channels or four channels

. . Five channels or more

. . . 22 channels or more

BA11

BA12

BA13

BA14

BA16

BA17

BA18

BA19

. Decoding two-channel information*

. Decoding multi-channel information*

. . Parametric decoding*

. . . Ambisonic (registered trade mark) techniques

. Streophonizing methods*

. . Mid-Side (M-S) method

. . Amplitude panning

. . Three-dimensional panning

CA00
CONTROL PARAMETERS

CA01

CA02

CA03

CA04

CA05

CA06

CA07

CA08

. Adjusting sound volumes

. . Optimal sound volumes

. . Muting, reducing

. . . Automatic gain control

. . Controlling loudnesses

. . Controlling balances

. . Front-back directional fading

. . Vertical balances

CA11

CA12

CA13

CA15

CA17

CA18

CA19

. Adjusting frequency properties*

. . Flattening

. . High tone ranges

. . Medium tone ranges

. . Low tone ranges

(Not Translated)

. . . Mixing fundamental effects

CA21

CA22

CA26

CA27

. Adjusting phases*

. . Matching delayed signal processing

. Relying on transfer functions or transfer coefficients*

. . Relying on correlations

CB00
REPRODUCING MODES

CB01

CB02

CB03

CB06

CB07

. Altering or changing reproduction modes*

. . Preferentially controlling speaker reproduction or headphone reproduction

. . Simultaneous reproduction in multiple modes

. Changing relying on types of reproduction sources*

. . Simultaneous reproduction of multiple sources or multiple types of sources

CB11

CB12

CB16

CB17

CB18

CB19

CB20

. Changing number of channels*

. . Up mixing

. . Down mixing

. . . Matching to number of speakers actually reproducing

. . . Multi-channel reproduction by virtual sound sources

. . . . Relying on preset information (intention of creators)

. . Selecting reproduction channels

CC00
SOUND FIELDS AND BROARDENING EFFECTS

CC01

CC02

CC03

CC04

CC05

CC06

CC08

CC09

. Reproducing environment, utilizing environment*

. . Conference rooms, conference halls

. . Movie theaters, theaters

. . Vehicles, vehicle interiors

. . Multi-room, multi-zone

. . Mobiles (mobile devices)

. Controlling virtual spaces*

. . Virtual areas, virtual zones

CC11

CC12

CC13

CC14

CC15

CC16

CC18

CC19

. Speaker constitutions*

. . Displacement of speakers

. . Compensating bias

. . Applying precedence effect (Haas effect)

. . Compensating travelling times, delay times, distances

. . Detecting states of connection or wires*

. Processing toward positions of listeners*

. . Corresponding to moving of listeners*

CC21

CC22

CC23

CC24

. Reproduction of collected sounds in original sound fields*

. . Obtaining sound field information

. . Selecting sound fields to be formed

. . . Acoustic simulations of famous halls

CC31

CC32

CC33

CC34

CC36

CC37

CC39

CC40

. Adding spatial feeling, cubic feeling*

. . Generating surround sounds

. . . Decorrelation processing

. . Processing crosstalk

. Adding indirect sounds

. . Effects of early reflection

. . Effects of speaker displacement

. . Effects of displacement of speaker units

CD00
SOUND IMAGE LOCALIZATION

CD01

CD02

CD03

CD04

CD05

CD06

CD07

CD08

CD09

CD10

. Displacements of sound sources, objects, or sound images*

. . Localization in right and left directions

. . Localization in up and down directions

. . Localization in front and back directions

. . . Localizing the median plane

. . With perception of each of frequency bands

. . With head-related transfer function (HRTF)

. . With moving sound sources, sound images*

. . . With Doppler effect

. . Alarm sounds, informational sounds

CD11

CD13

CD14

CD15

CD17

CD18

. . Selecting localization directions, localization areas

. Separating, synthesizing sound sources, objects*

. . Generating center sound images

. . Improving quality of sound images

. Controlling distance feeling*

. . Depth feeling

CD21

CD22

CD23

CD24

CD25

CD26

CD27

CD30

. Specific techniques to reproduction with headphones and earphones*

. . Reproduction techniques of binaural signals

. . Binauralizing legacy contents

. . Headphone reproduction of multichannel signals

. . Controlling sound image corresponding to moving or changes in orientation of the head

. . Improving out-of-head sound localization

. . . Improving especially forward (front) localization

. . Especially for hearing aids*

CD31

CD32

CD33

CD34

. Specific to vehicle spaces*

. . Corresponding to sitting

. . Corresponding to doors

. . Corresponding to steering devices

DA00
CONTROLE MEANS, CONTROLE FUNCTIONS, AND DISPLYING FUNCTIONS

DA01

DA02

DA04

DA06

. Detecting means, detecting functions*

. . Microphones

. . Multiple types of sensors

. . Imaging devices

DA11

DA12

DA13

DA14

DA16

DA17

DA18

DA19

. Connecting means, connecting functions*

. . Multimedia IF

. . Digital sound IF

. . Selecting, changing input-output terminals

. . Radio transmission

. . . Short-distance radio communication

. . . Infrared communication

. . Power line communication

DA21

DA22

DA23

DA24

DA25

DA27

DA28

DA30

. Signal processing means, signal processing functions*

. . Filtering

. . . All-pass filters (making linear phase)

. . Graphic equalizers

. . . Parametric calculation

. . Transformation, inverse transformation in time-frequency bands

. . . Subband processing

. . Cancelling properties of input-output devices

DA31

DA32

DA33

DA34

DA35

DA37

DA38

. Reproduction measures, reproduction functions*

. . Speaker arrays

. . Wave field synthesis*

. . . Wall reflection

. . Parametric speakers

. . Speakers with built-in amplifiers

. . Speakers with built-in batteries

DA41

DA42

DA44

DA45

DA47

. Operating means, operating functions*

. . Mechanical operating means

. . Graphical user interface (GUI)

. . . Touch panels

. . Voice input

DA51

DA52

DA56

DA57

DA58

. Displaying means, displaying functions*

. . Displaying sound sources, sound image localization

. Displaying parameters*

. . Displaying bar graphs

. . Displaying patterns

EA00
CPC[2-CHANNELS]

EA01

EA02

EA05

EA07

. 2-channel systems

. . Non-adaptive circuits

. . . for headphones

. . digital audio signals

EC00
CPC[MULTI-CHANNELS]

EC01

EC02

EC04

EC06

EC08

. Systems with more than two multi-channels

. . Non-adaptive circuits

. . . for headphones

. . Combination of audio signals and modulated signals

. . Digital audio signals

EC11

. . Matrix-type

EE00
CPC (PSEUDOSTEREOPFONIC SYSTEMS)

EE01

EE05

. Pseudo stereophonic systems

. . Pseudo 5 or more-channel systems

EE11

. . Pseudo 4-channel systems

EG00
CPC (CONTROLLING, DISPLAYING)

EG01

EG02

EG03

EG04

EG05

EG06

EG07

EG08

EG09

EG10

. Controlling apparatuses or displaying apparatuses, their functions

. . Controlling circuits for electronic processing of sound field

. . . Automatic compensation of stereophonic sound systems

. . . Processing corresponding to positions and orientations of listeners

. . . . Tracing positions and orientations of listeners

. . . . . Tracing for headphones

. . . Electronic dealing with reverberation in listening spaces

. . . . for headphones

. . . Adjusting frequency (tone-control)

. . . Processing corresponding to connection to speakers, headphones

EG11

. . Visible displaying stereophonic sound images

5D162	STEREOPHONIC SYSTEM
	H04S1/00 -7/00,400