Exhibit 2

Case 2:23-cv-00350-JRG Document 1-2 Filed 07/28/23 Page 1 of 12 PageID #: 20
Claim 2 Evidence

2. A speaker 

system for 

producing 

localized regions

of sound 

comprising:

The Sony’s HT-X8500 soundbar is a speaker system for producing localized regions of

sound.

For example, the Sony’s HT-X8500 soundbar produces a surround sound effect. The

surround sound effect causes a listener facing the soundbar to perceive that sound

emanating from the soundbar is originating at a location behind and to the left of the

listener, referred to as surround left, and at another location behind and to the right of

the listener, referred to as surround right.

Source: https://electronics.sony.com/audio/soundbars/all-soundbars/p/htx8500

1

Infringement Claim Chart for U.S. Pat. No. US7130430B2 v. Sony (“Defendant”)

(See Accused Product List at end of chart for models)

Case 2:23-cv-00350-JRG Document 1-2 Filed 07/28/23 Page 2 of 12 PageID #: 21
a multiplicity of 

audio frequency 

speakers;

The Sony’s HT-X8500 soundbar includes a multiplicity of audio frequency speakers.

For example, the Sony’s HT-X8500 soundbar includes multiple audio speakers positioned

along a front face of the soundbar.

Source: https://electronics.sony.com/audio/soundbars/all-soundbars/p/htx8500

at least one 

defined sound 

target spaced 

from each of the

speakers of the 

multiplicity of 

speakers, 

wherein each 

speaker has a 

means for 

applying a time 

varying audio 

drive voltage 

which is 

The Sony’s HT-X8500 soundbar has at least one defined sound target spaced from each

of the speakers of the multiplicity of speakers. Each speaker has a means for applying a

time varying audio drive voltage which is substantially identical, except that each audio

drive voltage is offset in time by an amount which is related to the distance between

each speaker and the defined sound target. So that substantially identical sound from

each speaker reaches the sound target at the same time.

For example, each of the Sony’s HT-X8500 soundbar speakers is connected to an audio

amplifier. A surround left channel signal is provided to each speaker via the speaker’s

respective amplifier. The surround left channel is delayed slightly for speakers on the

listener’s left compared to speakers on the listener’s right. The amount of delay is such

that sound waves emanating from each of the speakers reach the surround left location

at the same time, thereby interfering constructively to produce a resultant sound wave

having peak spatial amplitude at the surround left location. When this wave reflects back

2

Case 2:23-cv-00350-JRG Document 1-2 Filed 07/28/23 Page 3 of 12 PageID #: 22
substantially 

identical, except

that each audio 

drive voltage is 

offset in time by

an amount 

which is related 

to the distance 

between each 

speaker and the 

defined sound 

target, so that 

substantially 

identical sound 

from each 

speaker reaches

the sound target

at the same 

time;

to the listener, the listener perceives that the sound originated from the surround left

location.

3

Case 2:23-cv-00350-JRG Document 1-2 Filed 07/28/23 Page 4 of 12 PageID #: 23
Source: https://electronics.sony.com/audio/soundbars/all-soundbars/p/htx8500

at least a first 

defined sound 

target and a 

second defined 

sound target, 

the second 

sound target 

being spaced 

from the first 

sound target, 

and the first 

sound target 

and the second 

sound target 

being spaced 

from each of the

speakers of the 

multiplicity of 

The Sony’s HT-X8500 soundbar has at least a first defined sound target and a second

defined sound target. The second sound target is spaced from the first sound target. The

first sound target and the second sound target are spaced from each of the speakers.

For example, the surround left location is at a rear position on a left-side wall of a

nominally sized room. The surround right location is at a rear position on the right-side

wall of the room. Additionally, the DSP technology feature enables the Sony’s HT-X8500

soundbar to adapt to the dimensions of the room.

4

Case 2:23-cv-00350-JRG Document 1-2 Filed 07/28/23 Page 5 of 12 PageID #: 24
speakers, 

5

Case 2:23-cv-00350-JRG Document 1-2 Filed 07/28/23 Page 6 of 12 PageID #: 25
Source: https://electronics.sony.com/audio/soundbars/all-soundbars/p/htx8500

and wherein the

means for 

applying a time 

varying audio 

drive voltage 

comprises:

at least a first 

audio source 

which is offset in

time by an 

amount which is

related to the 

distance 

The means for applying a time varying audio drive voltage comprises at least a first

audio source which is offset in time by an amount which is related to the distance

between each speaker and the first defined sound target.

For example, a delay is added to the surround left channel (e.g. first audio source) before

it is applied to a speaker on the left-side of the soundbar, as viewed from the listener’s

position. The delay relates to the distance between the speaker and the surround left

location in the nominally sized room, whereby the speaker closest to the surround left

location has the most delay. This enables the soundbar to produce directional audio.

6

Case 2:23-cv-00350-JRG Document 1-2 Filed 07/28/23 Page 7 of 12 PageID #: 26
between each 

speaker and the 

first defined 

sound target; 

and

Source: https://electronics.sony.com/audio/soundbars/all-soundbars/p/htx8500

at least a 

second audio 

source which is 

offset in time by

an amount 

which is related 

to the distance 

between each 

speaker and the 

second defined 

sound target 

wherein a sum 

of the first audio

source which is 

offset in time 

and the second 

audio source 

which is offset in

time is used to 

produce the 

The Sony’s HT-X8500 soundbar includes at least a second audio source which is offset in

time by an amount which is related to the distance between each speaker and the

second defined sound target. The sum of the first audio source and the second audio

source is used to produce the time varying audio drive voltage. Substantially identical

sound from the first audio source signal reaches the first sound target at the same time,

and substantially identical sound from the second audio source signal reaches the

second target at the same time.

For example, a delay is added to the surround right channel (e.g. second audio source)

before it is applied to a speaker on the right-side of the soundbar. The delay relates to

the distance between the speaker and the surround right location, whereby the speaker

closest to the surround right location has the most delay. Each speaker is provided, via

its amplifier, with a surround left channel signal and a surround right channel signal,

each signal having a respective delay. The signals are added together before being input

to the respective amplifier. Consequently, each speaker emits a sound wave comprising

audio from the surround left channel and from the surround right channel, the audio from

each channel having an appropriate amount of delay such that the surround left audio

reaches the surround left location at the same time as the surround right audio reaches

the surround right location.

7

Case 2:23-cv-00350-JRG Document 1-2 Filed 07/28/23 Page 8 of 12 PageID #: 27
time varying 

audio drive 

voltage so that 

substantially 

identical sound 

from the first 

audio source 

signal reaches 

the first sound 

target at the 

same time, and 

substantially 

identical sound 

from the second

audio source 

signal reaches 

the second 

target at the 

same time.

Source: https://electronics.sony.com/audio/soundbars/all-soundbars/p/htx8500

8

Case 2:23-cv-00350-JRG Document 1-2 Filed 07/28/23 Page 9 of 12 PageID #: 28
Accused Product List

HT-A9 High Performance Home Theater System

HT-A7000 7.1.2ch Dolby Atmos® Soundbar

HT-A5000 5.1.2ch Dolby Atmos® Soundbar

HT-A3000 3.1ch Dolby Atmos® Soundbar

HT-S2000 3.1ch Dolby Atmos® Soundbar

HT-G700 3.1ch Dolby Atmos® / DTS:X® Soundbar

HT-S400 2.1ch Soundbar with Wireless subwoofer

HT-X8500 2.1ch Dolby Atmos®/DTS:X® Soundbar with built-in subwoofer

HT-S40R 5.1ch Home Cinema Soundbar System

HT-S100F 2ch Built-in Tweeter Soundbar

SA-SW5 300W Wireless Subwoofer for HT-A9/HT-A7000/HT-A5000/HT-A3000/HT-S2000

SA-SW3 200W Wireless Subwoofer for HT-A9/HT-A7000/HT-A5000/HT-A3000/HT-S2000

SA-RS5 Wireless Rear Speakers with Built-in Battery for HT-A7000/HT-A5000/HT-A3000

SA-RS3S Wireless Rear Speakers for HT-A7000/HT-A5000/HT-A3000

NS7 Wireless Wearable TV Speaker

SA-Z9R Wireless Rear Speakers for HT-Z9F

HT-S200F 2.1ch Built-in Subwoofer Mini Soundbar

HT-MT300 2.1ch Compact Soundbar with Bluetooth®

HT-Z9F 3.1ch Dolby Atmos® / DTS:X® Soundbar

HT-S350 2.1ch Soundbar with Wireless Subwoofer

References

[1] HT-A9 High Performance Home Theater System

https://electronics.sony.com/audio/soundbars/all-soundbars/p/hta9

[2] HT-A7000 7.1.2ch Dolby Atmos® Soundbar

https://electronics.sony.com/audio/soundbars/all-soundbars/p/hta7000

9

Case 2:23-cv-00350-JRG Document 1-2 Filed 07/28/23 Page 10 of 12 PageID #: 29
[3] HT-A5000 5.1.2ch Dolby Atmos® Soundbar

https://electronics.sony.com/audio/soundbars/all-soundbars/p/hta5000

[4] HT-A3000 3.1ch Dolby Atmos® Soundbar

https://electronics.sony.com/audio/soundbars/a-series-soundbars/p/hta3000

[5] HT-S2000 3.1ch Dolby Atmos® Soundbar

https://electronics.sony.com/audio/soundbars/all-soundbars/p/hts2000-uc2

[6] HT-G700 3.1ch Dolby Atmos® / DTS:X® Soundbar

https://electronics.sony.com/audio/soundbars/all-soundbars/p/htg700

[7] HT-S400 2.1ch Soundbar with Wireless subwoofer

https://electronics.sony.com/audio/soundbars/all-soundbars/p/hts400

[8] HT-X8500 2.1ch Dolby Atmos®/DTS:X® Soundbar with built-in subwoofer

https://electronics.sony.com/audio/soundbars/all-soundbars/p/htx8500

[9] HT-S40R 5.1ch Home Cinema Soundbar System

https://electronics.sony.com/audio/soundbars/all-soundbars/p/hts40r

[10] HT-S100F 2ch Built-in Tweeter Soundbar

https://electronics.sony.com/audio/soundbars/all-soundbars/p/hts100f

[11] SA-SW5 300W Wireless Subwoofer for HT-A9/HT-A7000/HT-A5000/HT-A3000/HT-S2000

https://electronics.sony.com/audio/soundbars/all-soundbars/p/sasw5

[12] SA-SW3 200W Wireless Subwoofer for HT-A9/HT-A7000/HT-A5000/HT-A3000/HT-S2000

https://electronics.sony.com/audio/soundbars/all-soundbars/p/sasw3

10

Case 2:23-cv-00350-JRG Document 1-2 Filed 07/28/23 Page 11 of 12 PageID #: 30
[13] SA-RS5 Wireless Rear Speakers with Built-in Battery for HT-A7000/HT-A5000/HT-A3000

https://electronics.sony.com/audio/soundbars/a-series-soundbars/p/sars5

[14] SA-RS3S Wireless Rear Speakers for HT-A7000/HT-A5000/HT-A3000

https://electronics.sony.com/audio/soundbars/all-soundbars/p/sars3s

[15] NS7 Wireless Wearable TV Speaker

https://electronics.sony.com/audio/speakers/wearable-speakers/p/srsns7

[16] SA-Z9R Wireless Rear Speakers for HT-Z9F

https://electronics.sony.com/audio/soundbars/all-soundbars/p/saz9r

[17] HT-S200F 2.1ch Built-in Subwoofer Mini Soundbar

https://electronics.sony.com/audio/soundbars/all-soundbars/p/hts200f

[18] HT-MT300 2.1ch Compact Soundbar with Bluetooth®

https://electronics.sony.com/tv-video/tv-video-home-theater-sound-bars/soundbars/p/htmt300-w

[19] HT-Z9F 3.1ch Dolby Atmos® / DTS:X® Soundbar

https://electronics.sony.com/audio/soundbars/all-soundbars/p/htz9f

[20] HT-S350 2.1ch Soundbar with Wireless Subwoofer

https://electronics.sony.com/audio/soundbars/all-soundbars/p/hts350

11

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