Source: s3://data.kl3m.ai/documents/govinfo/USCOURTS/USCOURTS-cand-4_20-cv-05340/USCOURTS-cand-4_20-cv-05340-1/pdf.json

Nature of Suit Code: 830
Nature of Suit: Patent
Cause of Action: 35:271 Patent Infringement

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IN THE UNITED STATES DISTRICT COURT

FOR THE EASTERN DISTRICT OF TEXAS

MARSHALL DIVISION

UNILOC 2017 LLC,

Plaintiff,

v.

GOOGLE LLC,

Defendant.

§

§

§

§

§

§

§

 Case No. 2:18-CV-00501-JRG-RSP

 

CLAIM CONSTRUCTION

MEMORANDUM AND ORDER

On January 6, 2020, the Court held a hearing to determine the proper construction of the 

disputed claim terms within United States Patent Nos. 6,452,515 (“the ’515 Patent”). Having 

reviewed the arguments made by the parties at the hearing and in their claim construction briefing 

(Dkt. Nos. 139, 148, & 151), having considered the intrinsic evidence, and having made subsidiary 

factual findings about the extrinsic evidence, the Court hereby issues this Claim Construction 

Memorandum and Order. See Phillips v. AWH Corp., 415 F.3d 1303, 1314 (Fed. Cir. 2005) (en 

banc); see also Teva Pharm. USA, Inc. v. Sandoz, Inc., 135 S. Ct. 831, 841 (2015). 

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TABLE OF CONTENTS

I. BACKGROUND ............................................................................................................... 3

II. APPLICABLE LAW ........................................................................................................ 3

III. THE PARTIES’ STIPULATED TERMS....................................................................... 6

IV. CONSTRUCTION OF DISPUTED TERMS IN THE ’515 PATENT ........................ 7

A. “means for” terms within Claim 1 ................................................................. 7

B. The Preamble of Claim 1 ............................................................................. 22

V. CONCLUSION ............................................................................................................... 25

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I. BACKGROUND

Plaintiff Uniloc 2017 LLC (“Plaintiff” or “Uniloc”) alleges that Defendant Google LLC 

(“Defendant” or “Google”) infringes United States Patents No. 6,452,515 (“the ’515 Patent”).

Shortly before the start of the January 6, 2020 hearing, the Court provided the parties with 

preliminary constructions with the aim of focusing the parties’ arguments and facilitating 

discussion. Those preliminary constructions are noted below within the discussion for each term.

II. APPLICABLE LAW

A. Claim Construction

This Court’s claim construction analysis is guided by the Federal Circuit’s decision in 

Phillips v. AWH Corporation, 415 F.3d 1303 (Fed. Cir. 2005) (en banc). In Phillips, the Federal 

Circuit reiterated that “the claims of a patent define the invention to which the patentee is entitled 

the right to exclude.” Id. at 1312. The starting point in construing such claims is their ordinary and 

customary meaning, which “is the meaning that the term would have to a person of ordinary skill 

in the art in question at the time of the invention, i.e., as of the effective filing date of the patent 

application.” Id. at 1312-13. 

However, Phillips made clear that “the person of ordinary skill in the art is deemed to read 

the claim term not only in the context of the particular claim in which the disputed term appears, 

but in the context of the entire patent, including the specification.” Id. at 1313. For this reason, the 

specification is often ‘the single best guide to the meaning of a disputed term.’” Id. at 1315 (quoting 

Markman v. Westview Instruments, Inc., 52 F.3d 967, 979–81 (Fed.Cir.1995) (en banc), aff’d, 517 

U.S. 370 (1996)) (internal quotation marks omitted). However, it is the claims, not the 

specification, which set forth the limits of the patentee’s invention. Id. at 1312. Thus, “it is 

improper to read limitations from a preferred embodiment described in the specification—even if 

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it is the only embodiment—into the claims absent a clear indication in the intrinsic record that the 

patentee intended the claims to be so limited.” Liebel-Flarsheim Co. v. Medrad, Inc., 358 F.3d 

898, 913 (Fed. Cir. 2004). Other asserted or unasserted claims can also aid in determining a claim’s 

meaning. See, e.g., Phillips, 415 F.3d at 1314 (explaining that use of “steel baffles” and “baffles” 

implied that “baffles” did not inherently refer to objects made of steel). 

The prosecution history also plays an important role in claim interpretation as intrinsic 

evidence of how the U.S. Patent and Trademark Office (“PTO”) and the inventor understood the 

patent. Id. at 1317, see also Aylus Networks, Inc. v. Apple Inc., 856 F.3d 1353, 1361 (Fed. Cir. 

2017) (applying this principle in the context of inter partes review proceedings); Microsoft Corp. 

v. Multi-Tech Sys., Inc., 357 F.3d 1340, 1350 (Fed. Cir. 2004) (noting that “a patentee’s statements 

during prosecution, whether relied on by the examiner or not, are relevant to claim interpretation”). 

However, “because the prosecution history represents an ongoing negotiation between the PTO 

and the applicant, rather than the final product of that negotiation, it often lacks the clarity of the 

specification and thus is less useful for claim construction purposes.” Id. at 1318, see also Athletic 

Alternatives, Inc. v. Prince Mfg., 73 F.3d 1573, 1580 (Fed. Cir. 1996) (noting that ambiguous 

prosecution history may be “unhelpful as an interpretive resource”).

Additionally, courts may rely on extrinsic evidence such as “expert and inventor testimony, 

dictionaries, and learned treatises.” Id. at 1317. As the Supreme Court recently explained: 

In some cases . . . the district court will need to look beyond the patent’s intrinsic 

evidence . . . to consult extrinsic evidence in order to understand, for example, the 

background science or the meaning of a term in the relevant art during the relevant 

time period. 

Teva Pharm. USA, Inc. v. Sandoz, Inc., 135 S. Ct. 831, 841 (2015). However, the Federal Circuit 

has emphasized that such extrinsic evidence is subordinate to intrinsic evidence. Phillips, 415 F.3d 

at 1317 (“[W]hile extrinsic evidence can shed useful light on the relevant art, we have explained 

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that it is less significant than the intrinsic record in determining the legally operative meaning of 

claim language.” (internal quotation marks omitted)). 

B. 35 U.S.C. § 112(6) (pre-AIA) / § 112(f) (AIA)1

A patent claim may be expressed using functional language. See 35 U.S.C. § 112, ¶ 6; 

Williamson v. Citrix Online, LLC, 792 F.3d 1339, 1347–49 & n.3 (Fed. Cir. 2015) (en banc in 

relevant portion). Section 112, Paragraph 6, provides that a structure may be claimed as a “means 

. . . for performing a specified function” and that an act may be claimed as a “step for performing 

a specified function.” Masco Corp. v. United States, 303 F.3d 1316, 1326 (Fed. Cir. 2002). 

But § 112, ¶ 6 does not apply to all functional claim language. There is a rebuttable 

presumption that § 112, ¶ 6 applies when the claim language includes “means” or “step for” terms

and that it does not apply in the absence of those terms. Masco Corp., 303 F.3d at 1326; 

Williamson, 792 F.3d at 1348. The presumption stands or falls according to whether one of 

ordinary skill in the art would understand the claim with the functional language, in the context of 

the entire specification, to denote sufficiently definite structure or acts for performing the function. 

See Media Rights Techs., Inc. v. Capital One Fin. Corp., 800 F.3d 1366, 1372 (Fed. Cir. 2015) 

(stating that § 112, ¶ 6 does not apply when “the claim language, read in light of the specification, 

recites sufficiently definite structure” (quotation marks omitted) (citing Williamson, 792 F.3d at 

1349; Robert Bosch, LLC v. Snap-On Inc., 769 F.3d 1094, 1099 (Fed. Cir. 2014))); Williamson, 

792 F.3d at 1349 (stating that § 112, ¶ 6 does not apply when “the words of the claim are 

understood by persons of ordinary skill in the art to have sufficiently definite meaning as the name 

for structure”); Masco Corp., 303 F.3d at 1326 (stating that § 112, ¶ 6 does not apply when the 

 1 Because the application resulting in the ’515 Patent was filed before the effective date of the

America Invents Act (“AIA”), the Court refers to the pre-AIA version of § 112.

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claim includes an “act” corresponding to “how the function is performed”); Personalized Media 

Communications, L.L.C. v. International Trade Commission, 161 F.3d 696, 704 (Fed. Cir. 1998) 

(stating that § 112, ¶ 6 does not apply when the claim includes “sufficient structure, material, or 

acts within the claim itself to perform entirely the recited function . . . even if the claim uses the 

term ‘means’”) (quotation marks and citation omitted). 

When it applies, § 112, ¶ 6 limits the scope of the functional term “to only the structure, 

materials, or acts described in the specification as corresponding to the claimed function and 

equivalents thereof.” Williamson, 792 F.3d at 1347. Construing a means-plus-function limitation 

involves multiple steps. “The first step . . . is a determination of the function of the means-plusfunction limitation.” Medtronic, Inc. v. Advanced Cardiovascular Sys., Inc., 248 F.3d 1303, 1311 

(Fed. Cir. 2001). “[T]he next step is to determine the corresponding structure disclosed in the 

specification and equivalents thereof.” Id. A “structure disclosed in the specification is 

‘corresponding’ structure only if the specification or prosecution history clearly links or associates 

that structure to the function recited in the claim.” Id. The focus of the “corresponding structure” 

inquiry is not merely whether a structure is capable of performing the recited function, but rather 

whether the corresponding structure is “clearly linked or associated with the [recited] function.” 

Id. The corresponding structure “must include all structure that actually performs the recited 

function.” Default Proof Credit Card Sys. v. Home Depot U.S.A., Inc., 412 F.3d 1291, 1298 (Fed. 

Cir. 2005). However, § 112, ¶ 6 does not permit “incorporation of structure from the written 

description beyond that necessary to perform the claimed function.” Micro Chem., Inc. v. Great 

Plains Chem. Co., 194 F.3d 1250, 1258 (Fed. Cir. 1999).

III. THE PARTIES’ STIPULATED TERMS 

The parties submitted in their November 5, 2019 P.R. 4-3 Joint Claim Construction and

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Prehearing Statement that “[t]he parties have agreed to the following constructions for U.S. Patent 

No. 6,452,515 (‘the ’515 patent’). None.” Dkt. No. 115 at 1.

IV. CONSTRUCTION OF DISPUTED TERMS IN THE ’515 PATENT

The ’515 Patent, titled “Video Encoder and Decoder,” issued on September 17, 2002, and 

bears an earliest priority date of April 16, 1999. The Abstract of the ’515 Patent states:

A video encoder and decoder are provided for processing a sequence of animated 

pictures in such a way that an interactive game, such as a puzzle for instance, may 

be played. Each picture of a movie sequence is divided into a predetermined 

number of pieces that are then randomly coded (according to the MPEG-4 

standard), transmitted and/or stored, decoded and displayed. It is then possible to 

play with the pieces to reorder them while they are in motion (with possible 

associated audio), according to predefined rules and ends of scenarios. The left and 

right buttons of a mouse, or a similar control device, are used to displace either one 

piece, or a group of attached pieces respectively, in order to verify if the proposed 

location for a piece is free and possible (no contradiction with any other 

surrounding piece) and then to drop said piece on the new spot, or, on the contrary, 

if some contradiction is detected, send back the piece (or, respectively, the group 

of attached pieces) to its previous location.

A. “means for” terms within Claim 1

Disputed Term Plaintiff’s Proposal Defendant’s Proposal

“means for 

dividing a screen 

window occupied 

by said sequence 

into X rows and 

Y columns”

Not governed by 35 U.S.C. §112(6); 

not indefinite.

If construed under U.S.C. §112(6), 

however, then:

Function: dividing a screen window 

occupied by said sequence into X 

rows and Y columns

Structure: a video encoder 

programmed to divide a screen 

window occupied by said sequence 

into X rows and Y columns, or 

equivalents thereof

Indefinite due to absence of 

corresponding structure 

(algorithm) in the 

specification. 35 U.S.C. § 

112(2), 112(6).

Function: “dividing a screen

window occupied by said 

sequence into X rows and Y 

columns”

Structure/ Algorithm: None

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Disputed Term Plaintiff’s Proposal Defendant’s Proposal

“means for 

separately 

encoding each 

one of the X·Y 

parts of each 

picture of the 

sequence thus 

obtained”

Not governed by 35 U.S.C. §112(6); 

not indefinite.

If construed under U.S.C. §112(6), 

however, then:

Function: separately encoding each 

one of the X·Y parts of each picture 

of the sequence thus obtained

Structure: a video encoder 

programmed to separately encode 

each one of the X·Y parts of each 

picture of the sequence thus obtained, 

or equivalents thereof

Indefinite due to absence of 

corresponding structure 

(algorithm) in the 

specification. 35 U.S.C. § 

112(2), 112(6).

Function: “separately 

encoding each one of the X·Y 

parts of each picture of the 

sequence thus obtained”

Structure/ Algorithm: None

“means for 

associating, to 

each of said parts, 

a specific label 

indicating a 

position of the 

part in the 

window”

Not governed by 35 U.S.C. §112(6); 

not indefinite.

If construed under U.S.C. §112(6), 

however, then:

Function: associating, to each of said 

parts, a specific label indicating a 

position of the part in the window

Structure: a video encoder 

programmed to associate to each of 

said parts a specific label indicating a 

position of the part in the window, or 

equivalents thereof

Indefinite due to absence of 

corresponding structure 

(algorithm) in the 

specification. 35 U.S.C. § 

112(2), 112(6). 

Function: “associating, to 

each of said parts, a specific 

label indicating a position of 

the part in the window”

Structure/ Algorithm: None

“[means] for 

encoding these

labels in a 

random order”

Not governed by 35 U.S.C. §112(6); 

not indefinite.

If construed under U.S.C. §112(6), 

however, then:

Function: encoding these labels in a 

random order

Structure: a video encoder 

programmed to encode the labels in a 

random order

Indefinite due to absence of 

corresponding structure 

(algorithm) in the 

specification. 35 U.S.C. § 

112(2), 112(6).

Function: “encoding these 

labels in a random order”

Structure/Algorithm: None

Shortly before the start of the January 6, 2020 hearing, the Court provided the parties 

with the following preliminary constructions for these phrases: 

Disputed Term Court’s Preliminary Construction

“means for dividing a 

screen window occupied 

by said sequence into X 

rows and Y columns”

Governed by 35 U.S.C. §112, ¶ 6; not indefinite

Function: dividing a screen window occupied by said sequence 

into X rows and Y columns

Structure: a video encoder programmed to divide the screen 

window occupied by the sequence into X rows and Y columns as 

illustrated in Figure 3, or equivalents thereof

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Disputed Term Court’s Preliminary Construction

“means for separately 

encoding each one of 

the X·Y parts of each 

picture of the sequence 

thus obtained”

Governed by 35 U.S.C. §112, ¶ 6; not indefinite

Function: separately encoding each one of the X·Y parts of each 

picture of the sequence thus obtained

Structure: a video encoder programmed to separately encode 

each one of the X·Y parts of each picture of the sequence thus 

obtained according to the MPEG standard, or equivalents thereof

“means for associating, 

to each of said parts, a 

specific label indicating 

a position of the part in 

the window”

Governed by 35 U.S.C. §112, ¶ 6; not indefinite

Function: associating, to each of said parts, a specific label 

indicating a position of the part in the window

Structure: a video encoder programmed to associate to each of 

said parts a bidimensional label [a, b] indicating the original 

position of the concerned part in the movie sequence (a varies 

from 0 to X and b from 0 to Y; therefore, P=X+l and Q=Y+l).

“[means] for encoding 

these labels in a random 

order”

Indefinite due to absence of corresponding structure 

(algorithm) in the specification

Governed by 35 U.S.C. §112, ¶ 6; 

Function: encoding these labels in a random order

Structure: None

1. The Parties’ Positions

The parties dispute whether the “means for” terms should be governed by 35 U.S.C. § 112 

¶ 6. Plaintiff argues that the claim language itself recites sufficient structure. Dkt. No. 139 at 8. 

Plaintiff contends that the “means for” limitations collectively define the structural programming 

of a “video encoder,” which is itself understood by persons of ordinary skill in the art as a name 

for structure. Id. In the alternative, Plaintiff contends that the respective function for each is recited 

by the computational requirements following the “means for” couplet, and that the corresponding 

structure at least includes the claimed “video encoder” programmed according to those 

computational requirements. Id. at 9.

Plaintiff also argues that the preamble of claim 1 recites “[a] video encoder for processing 

a sequence of animated pictures, said encoder comprising” each one of the challenged “means for” 

limitations. Id. Plaintiff contends that Defendant’s argument that the “means for” limitations 

recited in the body of claim 1 are part of something other than the claimed “video encoder” is a 

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misunderstanding of the claim language and fundamental principles of claim construction. Id. at 

10. Plaintiff argues that the preamble of claim 1 introduces the “video encoder” element and is 

followed by three “means for” limitations expressly directed to the same structural “video 

encoder” element. Id.

According to Plaintiff, these three “means for” limitations are structurally interrelated with 

one another at least in that each is recited is being part of the “video encoder” introduced in the 

preamble. Id. Plaintiff contends that the “means for” limitations themselves collectively define an 

algorithm for accomplishing the explicit purpose recited in the preamble as “processing a sequence 

of animated pictures” and that the “video encoder” is itself structure that corresponds to each 

“means for” limitation. Id.

Plaintiff further argues that nothing in the specification supports the conclusion that the 

“video encoder” term is a nonce word or is synonymous with a general-purpose computer. Id. 

Plaintiff contends that the specification is titled “video encoder and decoder.” Id. Plaintiff further 

contends that the specification states that “[t]he present invention relates to a video encoder for 

processing sequences of animated pictures, such as movies, and to a corresponding decoder.” Id. 

According to Plaintiff, the “video encoder” introduced in the claim preamble connotes structure, 

and must itself be considered part of the corresponding structure required for each “means for” 

term. Id. at 11.

In the alternative, Plaintiff argues that the phrase “means for dividing a screen window 

occupied by said sequence into X rows and Y columns,” explicitly ties each “means for” limitation 

to the structural “video encoder” element introduced in the preamble. Id. at 14. Plaintiff further 

argues that the specification further discloses sufficient algorithmic structure corresponding to this 

limitation. Id. (citing ’515 Patent at 1:5‒7, 1:49‒53, 2:36‒39, 2:55‒62, 3:5‒14, 3:34‒39, 3:52‒60, 

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Figures 3–5, 7). 

Plaintiff also argues that corresponding structure for the phrase “means for separately 

encoding each one of the X·Y parts of each picture of the sequence thus obtained” includes “a 

video encoder programmed to separately encode each one of the X·Y parts of each picture of the 

sequence thus obtained, or equivalents thereof.” Id. at 16. Plaintiff contends that the specification 

further discloses sufficient algorithmic structure corresponding to this limitation. Id. at 14 (citing 

’515 Patent at 1:5‒7, 1:49‒55, 2:39‒41, 2:55‒3:8, 3:34‒51, & Figures 4 and 5).

Plaintiff further argues that corresponding structure for the phrase “means for associating, 

to each of said parts, a specific label indicating a position of the part in the window, and for 

encoding these labels in a random order” includes “a video encoder programmed to separately 

associate, to each of said parts, a specific label indicating a position of the part in the window, and 

for encode these labels in a random order, including equivalents thereof.” Id.at 17. Plaintiff 

contends that the specification further discloses sufficient algorithmic structure corresponding to 

this limitation. Id. at 18 (’515 Patent at 1:5–7, 1:49–58, 2:36–39, 2:59–62, 2:63–65, 3:20–23, 5:53–

57, 6:8–15, 6:30–40, Figures 3, 15–17).

Defendant responds that the specification describes only the output of an algorithm for the 

function “dividing a screen window occupied by said sequence into X rows and Y columns” and 

not the algorithm itself. Dkt. No. 148 at 11 (citing ’515 Patent at 2:36–38, 2:55–56). Defendant 

argues that the specification gives no explanation for how to divide the screen into parts. Id.

Defendant also argues that the specification’s reference to encoding “according to the MPEG-4 

standard” does not provide an algorithm as required by § 112 ¶ 6. Id. at 12 (citing ’515 Patent at 

Figure 4). Defendant further argues that the specification’s disclosure of “the realization of an 

MPEG-4 puzzle of M×N pieces” lacks the requisite algorithm because it gives no explanation 

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regarding how this process would be carried out. Id. at 13 (citing ’515 Patent at 3:34–45).

Defendant also contends that Figure 7 merely shows an image of a software interface and does not 

disclose an algorithm. Id. at 12. Defendant also argues that Plaintiff failed to demonstrate that the 

claim and specification recite any structure for performing the claimed functions other than a 

general-purpose computer, which thus requires an algorithm for performing the claimed function. 

Id. at 14.

Regarding the phrase “means for separately encoding each one of the X·Y parts of each 

picture of the sequence thus obtained,” Defendant argues that the specification does not disclose 

an algorithm or programming for performing the function. Id. at 15 (citing Dkt. No. 148-3 at ¶¶ 

35, 36). Defendant contends that a mere reference to a standard does not disclose corresponding 

structure. Id. Defendant also argues that the specification touches upon the types of data encoded 

when the MPEG-4 standard is used, without describing how that data is used to encode. Id. at 16

(citing ’515 Patent at 1:9–20). According to Defendant, the specification discloses only a generalpurpose computer for implementing the claimed function of “separately encoding each one of the 

X·Y parts of each picture of the sequence thus obtained.” Id. at 17 (citing Dkt. No. 148-3 at ¶ 26).

Regarding the phrase “means for associating to each of said parts, a specific label indicating 

a position of the part in the window,” Defendant argues that the specification does not disclose the 

algorithm by which the labels are associated with each part of the movie with the requisite 

specificity. Id. (citing Dkt. No. 148-3 at ¶ 40). Defendant further argues that the specification also 

does not disclose the algorithm by which labels are associated with parts of the movie. Id. (citing 

Dkt. No. 148-3 at ¶ 41). According to Defendant, the only other references in the specification that 

address the labels mentioned in this claim limitation are directed to how they are used after they 

have been associated with the parts of the movie. Id. (citing ’515 Patent at 3:19–22 & 4:11–15). 

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Defendant argues that disclosing how the claimed labels are used after they have already been 

associated with parts of the movie is not the same as disclosing the algorithm by which those labels 

are associated with the parts of the movie. Id.

Defendant also contends that even though the specification describes labels as being twodimensional descriptors of a part’s location, such a disclosure falls far short of showing how a 

label is associated with a part of the window and thus lacks the necessary algorithm. Id. at 18. 

Defendant next contends that Plaintiff incorrectly combines the terms and functions (1) “for 

associating, to each of said parts, a specific label indicating a position of the part in the window,” 

and (2) “for encoding these labels in a random order,” as a single “means for” term. Id.

Regarding the phrase “means . . . for encoding these labels in a random order,” Defendant 

argues the specification does not disclose the requisite algorithm for performing the function of 

encoding labels in random order. Id. at 19. Defendant further argues that the specification mentions 

random ordering of the parts of the movie sequence. Id. (citing ’515 Patent at 2:63–65, 3:9–11, 

3:56–60). Defendant contends that the specification does not detail an algorithm that describes 

how the invention encodes labels at all, let alone an algorithm for encoding labels in random order.

Id. at 20 (citing Dkt. No. 148-3 at ¶¶ 44, 45).

Defendant contends that it is not technically possible for a label to be encoded, because a 

label is nothing more than a bi-dimensional descriptor of the original position of a part of the video.

Id. (citing Dkt. No. 148-3 at ¶¶ 23, 45). Defendant argues that label is not amenable to being 

encoded in the same manner as a video, because a label does not contain data equivalent to that 

contained in a video. Id.

Plaintiff replies that each challenged term is structurally tied to the “video encoder” 

element, which has a sufficiently definite meaning as the name for structure Dkt. No. 151 at 5. 

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Plaintiff next contends that the challenged limitations collectively recite objectives and operations 

of the “video encoder” element. Id. Plaintiff further contends that the required structural 

arrangements of the “video encoder” are made explicit by the recited objectives and operations of 

the challenged limitations. Id.

Plaintiff also argues that it provided ample evidence that the term ‘video encoder’ is a 

structural term. Id. at 6–7. Plaintiff contends that Defendant cites no intrinsic evidence to support 

a conclusion that the claimed “video encoder” element is merely a nonce term. Id. at 7. Plaintiff 

further argues that the record includes Defendant’s admission that the claimed “video encoder” 

element denotes sufficiently definite structure. Id. at 7–9.

Plaintiff next argues that Defendant fails to meet its burden to prove that any of the three 

challenged limitations invokes the requirement that the patent specification must disclose a 

corresponding algorithm. Id. at 9–11. Plaintiff contends that Defendant has repeatedly asserted 

that each challenged “means for” limitation is itself properly characterized as “programming” that 

is a part of a larger program executable on a general purpose computer. Id. at 11. Plaintiff also 

contends that it expressly identifies structure, recited in the claim language itself, for each 

challenged limitation. Id. Plaintiff argues that this includes the claimed “video encoder” element 

because it is structurally tied to each of the challenged limitations. Id. Plaintiff contends that 

nothing in the specification supports the conclusion that the video encoder is itself synonymous 

with a general-purpose computer. Id. at 12.

Plaintiff also argues that the “means for” limitations themselves collectively define an 

algorithm for accomplishing the explicit purpose recited in the preamble as “processing a sequence 

of animated pictures.” Id. Plaintiff repeats that each challenged limitation recites programming 

that is structurally tied to the claimed “video encoder.” Id. According to Plaintiff, Defendant has 

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tacitly suggested that “video encoder” element itself inherently connotes algorithmic structure, 

because video encoders process data in “steps” when encoding video. Id. Finally, Plaintiff 

contends that these “steps” would collectively comprise an algorithm for encoding video. Id.

2. Analysis

The disputed phrases use the words “means” and specify a function, thus the Court 

presumes that the patentees intended to invoke the statutory mandates for means-plus-function 

clauses. The “presumption falls, however, if the claim itself recites sufficient structure to perform 

the claimed function.” Envirco Corp. v. Clestra Cleanroom, Inc., 209 F.3d 1360, 1364 (Fed. Cir. 

2000). Plaintiff contends that the claim language itself recites sufficient structure because the 

“means for” limitations collectively define the structural programming of “video encoder.” Dkt. 

No. 139 at 8. Plaintiff further argues that the structural programming “video encoder” element 

introduced in the preamble is followed by three “means for” limitations expressly directed to the 

same structural “video encoder” element. Id. at 10. According to Plaintiff, the “video encoder” is 

itself understood by persons of ordinary skill in the art as a name for structure.

The issue is not whether the term “video encoder,” when consider in a vacuum, indicates 

sufficient structure. Instead, the issue is whether a person of ordinary skill in the art would 

understand a “video encoder” as used in the context of the claim as a whole recites sufficient 

structure given the patentee’s choice to invoke the means-plus-function format. The Court 

previously found that terms like “processor,” do recite sufficient structure when considered in the 

context of the claims. (139 at 9, 11, 14, 16, 17). For example, in Smartflash LLC v. Apple Inc., 77 

F. Supp. 3d 535, 562-63 (E.D. Tex. 2014) the Court noted that the claims recited how the processor 

terms were connected with other claim limitations and those connections were described in the 

patents. Likewise, in Advanced Mktg. Sys., LLC v. CVS Pharm., Inc., Case No. 6:15-cv-134-JRGCase 4:20-cv-05340-YGR Document 177 Filed 02/04/20 Page 15 of 25
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KNM, 2016 U.S. Dist. LEXIS 58472, at **67-68 (E.D. Tex. May 3, 2016), the Court noted that 

the “claims at issue provide further evidence of structure by describing physical connections 

between the data processor and other claimed elements.” 

However, in contrast to Smartflash and Advanced Mktg, the patentee explicitly invoked 35 

U.S.C. § 112, ¶ 6 by using the words “means” followed by a function. Moreover, the claim 

language does not recite sufficient structure to perform the claimed functions. Accordingly, the 

Court finds that Plaintiff has failed to overcome the presumption that the phrases are governed by 

35 U.S.C. § 112, ¶ 6. See, e.g., St. Isidore Research, LLC v. Comerica Inc., No. 2:15-cv-1390-

JRG-RSP, 2016 U.S. Dist. LEXIS 126866, at *49 (E.D. Tex. Sep. 18, 2016) (“Here how the 

‘processor configured to . . .’ terms operate with the other claimed components is not sufficiently 

recited or described. As such, the ‘processor configured to . . .’ terms are governed by § 112, ¶ 

6.”).

Furthermore, the Federal Circuit’s decision in Net MoneyIN, Inc. v. VeriSign, Inc. suggests

that § 112, ¶ 6 applies here. See 545 F.3d 1359, 1366 (Fed. Cir. 2008). In that case, the claim 

required a “first bank computer including means for generating an authorization indicia . . . .” Id. 

at 1364. While the plaintiff argued that the claims recitation of a bank computer was sufficient to 

rebut the means-plus-function presumption, the Federal Circuit ultimately disagreed:

The bank computer is not linked in the claim as the “means” for 

generating an authorization indicia. Rather, the bank computer is 

recited as “including” those means. [Plaintiff’s] argument that the 

first bank computer constitutes sufficient structure would require the 

first bank computer to include a first bank computer, which is both 

redundant and illogical. Because the claimed generating means is a 

subset of the bank computer, there must be a recitation of structure 

that is a component of the bank computer to rebut the presumption. 

The claim contains no such recitation. As a result, the district court 

correctly concluded that the presumption of means-plus-function 

treatment had not been overcome.

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Id. at 1366. 

Similar to the claims in Net MoneyIn, the claims here require that the video encoder 

comprises means for accomplishing various functions, so “there must be a recitation of structure

that is a component of the [video encoder] to rebut the presumption.” Id. Thus, the recitation of a 

video encoder itself is insufficient to rebut the presumption that § 112, ¶ 6 applies. 

Having determined that the phrases are subject to 35 U.S.C. § 112, ¶ 6 and that Plaintiff 

has failed to rebut the presumption, the Court’s focus turns to determining the proper construction.

Section 112 (6) “recites a mandatory procedure for interpreting the meaning of a means-plusfunction or step-plus-function claim element. The claim limitations ‘shall be construed to cover 

the corresponding structure, material, or acts described in the specification and equivalents 

thereof.’ 35 U.S.C.A. § 112, ¶ 6” Al-Site Corp. v. VSI Intern., Inc., 174 F.3d 1308, 1320 (Fed. Cir. 

1999). To that end, the construction of a means-plus-function limitation involves two steps. “First, 

we determine the claimed function. Second, we identify the corresponding structure in the written 

description that performs that function. Determining a claimed function and identifying structure 

corresponding to that function involve distinct, albeit related, steps that must occur in a particular 

order.” JVW Enterprises, Inc. v. Interact Accessories, Inc., 424 F.3d 1324, 1330 (Fed. Cir. 2005). 

Having reviewed the intrinsic evidence, the Court finds that the recited function and 

corresponding structure for each phrase is as follows. For the phrase “means for dividing a screen 

window occupied by said sequence into X rows and Y columns,” the parties agree that the recited 

function is “dividing a screen window occupied by said sequence into X rows and Y columns.” 

Regarding the corresponding structure, the specification explicitly states that it is the encoder that 

processes the sequence of animated pictures. Specifically, the specification states that “[t]he 

present invention relates to a video encoder for processing sequences of animated pictures, such 

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as movies, and to a corresponding decoder.” ’515 Patent at 1:5–8, see also id. Abstract (“A video 

encoder and decoder are provided for processing a sequence of animated pictures in such a way 

that an interactive game, such as a puzzle for instance, may be played.”).

For mean-plus-function limitations implemented by computer software, the corresponding 

structure described in the patent specification must include an algorithm for performing the 

function. WMS Gaming Inc. v. Int'l Game Tech., 184 F.3d 1339, 1349 (Fed. Cir. 1999). Here, the 

specification discloses that the algorithm for performing the function of “dividing a screen window 

occupied by said sequence into X rows and Y columns” is illustrated in Figure 3. Specifically, the 

specification states that “FIG. 3 illustrates the principle of the sub-division of a movie sequence 

into X.Y parts to which a bidimensional label is associated.” ’515 Patent at 2:35–37. The 

specification further states that “[t]he movie sequence is divided into P rows and Q columns, as 

illustrated in FIG. 3.” Id. at 3:55–56. 

Defendant argues that Figure 3 only depicts the result of dividing the screen into parts, and 

not the algorithm used to accomplish that result. The Court disagrees with Defendant’s analysis.

“The specification can express the algorithm in any understandable terms including as a 

mathematical formula, in prose, or as a flow chart, or in any other manner that provides sufficient 

structure.” UUSI, LLC v. United States, 131 Fed. Cl. 244, 271 (2017) (citation and internal 

quotations omitted). In other words, there is not a requirement for a particular from of disclosure, 

such as a flowchart. Moreover, the “algorithm” for the corresponding structure of a computerimplemented means-plus-function limitation does not require actual source code. See Typhoon

Touch Technologies, Inc. v. Dell, Inc., 659 F.3d 1376, 1385–86 (Fed. Cir. 2011) (“For computerimplemented procedures, the computer code is not required to be included in the patent 

specification.”). Indeed, “[a] description of the function in words may ‘disclose, at least to the 

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satisfaction of one of ordinary skill in the art, enough of an algorithm to provide the necessary 

structure under §112, ¶ 6.” Id. at 1386 (citing Finisar Corp. v. DirecTV Grp., Inc., 523 F.3d 1323, 

1340 (Fed. Cir. 2008). Here, Figure 3 and the related description discloses, at least to the 

satisfaction of one of ordinary skill in the art, the corresponding structure for performing the recited 

function of “means for dividing a screen window occupied by said sequence into X rows and Y 

columns.”

For the phrase “means for separately encoding each one of the X·Y parts of each picture 

of the sequence thus obtained,” the parties agree that the recited function is “separately encoding 

each one of the X·Y parts of each picture of the sequence thus obtained.” Regarding the 

corresponding structure, the specification discloses that each one of the X·Y parts of each picture 

of the sequence is separately encoded according to the MPEG standard. Specifically, the 

specification states that “[t]he movie sequence is divided into P rows and Q columns, as illustrated 

in FIG. 3, and each part of the movie is separately encoded according to the MPEG-4 standard” 

’515 Patent at 2:55–57, see also id. at 3:44–51. The specification further states the following:

The MPEG-4 International Standard, described, for instance, in “Overview of the 

MPEG-4 Version 1 Standard” (document ISO/IEC JTC1/SC29/WG11 N1909, 

October 1997, Fribourg, Switzerland), is an object-based standard for multimedia. 

This means that the MPEG-4 standard is not only able to encode video pictures, as 

usually considered on a television screen, but it can also handle video data including 

shapes and textures within these shapes.

’515 Patent at 1:9–16.

Defendant argues that the specification’s mere reference to encoding “according to the 

MPEG-4 standard” does not provide an algorithm as required by § 112 ¶ 6. The Court disagrees.

Again, the disclosed algorithm does not need to be source code. Moreover, consistent with the 

specification, Defendant concedes that the MPEG-4 standard “sets forth governing guidelines as 

to how video should be encoded so that it can be decoded.” Dkt. No. 148 at 12 n.1. 

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For the phrase “means for associating, to each of said parts, a specific label indicating a 

position of the part in the window,” the parties agree that the recited function is “associating, to 

each of said parts, a specific label indicating a position of the part in the window.” Regarding the 

corresponding structure, the specification states that the specific label is a bidimensional label and 

discloses how it is calculated based on positional difference relative to a reference. Specifically, 

the specification discloses “a bidimensional label [a, b] indicating the original position of the 

concerned part in the movie sequence (a varies from 0 to X and b from 0 to Y; therefore, P=X+1 

and Q=Y+1)” ’515 Patent at 2:59–62. Defendant argues that this portion of the specification “does 

not disclose the algorithm by which the labels are associated with each part of the movie with the 

requisite specificity.” Dkt. No. 148 at 17. The Court disagrees. Again, the disclosed algorithm does 

not need to be source code, and the specification discloses more than a “black box.”

For the phrase “[means] for encoding these labels in a random order,” the parties agree that 

the recited function is “encoding these labels in a random order.” Regarding the corresponding 

structure, the specification does not disclose any algorithm for performing the function of encoding 

labels in random order. Plaintiff contends that the structure is “a video encoder programmed to 

encode the labels in a random order,” but it does not point to any intrinsic evidence that discloses 

an algorithm for performing the claimed function. The specification does mention random ordering 

of the parts of the movie sequence. Specifically, it states that “[t]he encoded parts of the movie 

sequence are then, in a random order, either transmitted (real-time transmission) or locally stored, 

on a disk or on a separate server.” ’515 Patent at 2:63–65 (emphasis added). It also mentions that 

“[t]he MPEG-4 visual objects, which represent the different parts of the original movie sequence 

may be restituted and displayed in a random order . . . .” Id. at 3:9–11 (emphasis added); see also 

id. at 3:56–60. 

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However, the specification does not provide an algorithm or otherwise that describes how 

to encode labels, let alone an algorithm for encoding labels in a random order. As discussed above, 

the only type of encoding discussed in the specification is encoding parts of the movie sequence 

according to the MPEG-4 standard. During the January 6, 2020 hearing, Plaintiff argued that the 

specification states that “[e]ach picture of a movie sequence is divided into a predetermined 

number of pieces that are then randomly coded (according to the MPEG-4 standard).” ’515 Patent 

at Abstract. As discussed above, the specification makes clear that the only encoding disclosed is 

encoding parts of the movie sequence according to the MPEG-4 standard. Consistent with the 

other portions of the specification cited above, the Abstract is referring to coding and not 

randomization. Therefore, this claim element is indefinite because the specification does not 

disclose an algorithm for performing the recited function of “encoding these labels in a random 

order.” Finally, in reaching its conclusion, the Court has considered the extrinsic evidence 

submitted by the parties and given it its proper weight in light of the intrinsic evidence.

3. Court’s Construction

In light of the evidence, the Court finds that the phrase “means for dividing a screen 

window occupied by said sequence into X rows and Y columns” is governed by 35 U.S.C. § 

112, ¶ 6 and construes the phrase as follows:

• Function: “dividing a screen window occupied by said sequence into X rows and Y 

columns”

• Corresponding Structure: A video encoder programmed to divide the screen window 

occupied by the sequence into X rows and Y columns as illustrated in Figure 3, or 

equivalents thereof.

The Court finds that the phrase “means for separately encoding each one of the X·Y 

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parts of each picture of the sequence thus obtained” is governed by 35 U.S.C. § 112, ¶ 6 and 

construes the phrase as follows:

• Function: “separately encoding each one of the X·Y parts of each picture of the 

sequence thus obtained”

• Corresponding Structure: A video encoder programmed to separately encode each 

one of the X·Y parts of each picture of the sequence thus obtained according to the 

MPEG standard, or equivalents thereof.

The Court finds that the phrase “means for associating, to each of said parts, a specific 

label indicating a position of the part in the window” is governed by 35 U.S.C. § 112, ¶ 6 and 

construes the phrase as follows:

• Function: “associating, to each of said parts, a specific label indicating a position of 

the part in the window”

• Corresponding Structure: A video encoder programmed to associate to each of said 

parts a bidimensional label [a, b] indicating the original position of the concerned part 

in the movie sequence (a varies from 0 to X and b from 0 to Y; therefore, P=X+l and 

Q=Y+l).

The Court finds that the phrase “[means] for encoding these labels in a random order”

is governed by 35 U.S.C. § 112, ¶ 6. The Court also finds that this phrase is indefinite for failure 

to disclose corresponding structure.

B. The Preamble of Claim 1

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Disputed Term Plaintiff’s Proposal Defendant’s Proposal

“A video encoder for 

processing a sequence of 

animated pictures, said 

encoder comprising”

Preamble is limiting and 

“video encoder” is a name for 

structure that performs the 

“means for” limitations.

The preamble is not limiting, 

Further, the term “video 

encoder,” as used in claim 1, does 

not connote structure, and, even if 

it were to connote structure, it is 

not the structure used to perform 

all of the limitations of claim 1.

Shortly before the start of the January 6, 2020 hearing, the Court provided the parties 

with the following preliminary construction for this term: Preamble is limiting.

1. The Parties’ Positions

The parties dispute whether the preamble of claim is limiting. Plaintiff argues that the 

preamble of claim 1 recites “[a] video encoder for processing a sequence of animated pictures, 

said encoder comprising” each one of the challenged “means for” limitations. Dkt. No. 139 at 9.

Plaintiff further argues that the preamble is limiting because it supplies antecedent basis for “said 

sequence” recited in the body of claim 1. Id. Plaintiff also argues that the preamble of claim 1 

introduces the “video encoder” element and is then followed by three “means for” limitations 

expressly directed to the same structural “video encoder” element. Id. at 10. 

Plaintiff contends that each one of the “means for” limitations further structurally defines 

the recited “video encoder” introduced in the preamble by setting forth respective computational 

operations corresponding to the functional description of the “video encoder” set forth in the 

preamble. Id. According to Plaintiff, the “video encoder” introduced in the claim preamble 

connotes structure and, consequently, must itself be considered part of the corresponding structure 

required for each “means for” terms. Id. at 11.

Defendant responds that video encoders were implemented on general-purpose computers 

at the time of the filing of the ’515 Patent. Dkt. No. 148 at 20 (citing Dkt. No. 148-3 at ¶ 26). 

Defendant contends that the specification only discloses using a general-purpose computer to 

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implement the purported inventive aspects of the patent. Id. (citing Dkt. No. 148-3 at ¶ 26; ’515 

Patent at 2:18–25, 2:42–45, 2:63–65, 3:2–5, 3:15–19, 3:56–60, 5:3–10). Defendant argues that 

Plaintiff does not provide any evidence showing that the term “video encoder” is a structural term. 

Id. at 21. Finally, Defendant contends that the patents cited by Plaintiff support Defendant’s 

arguments that encoders are implemented on general-purpose computers. Id. at 24.

Plaintiff replies that it is undisputed that the preamble of claim 1 is limiting for at least two 

reasons. Dkt. No. 151 at 5. Plaintiff argues that the “video encoder” element introduced in the 

preamble expressly limits the structure of each challenged term. Id. Plaintiff further argues that 

the preamble supplies antecedent basis for “said sequence” recited in the body of claim 1. Id.

2. Analysis

The Court finds that the preamble is limiting because it recites essential structure and

because it is “necessary to give life, meaning and vitality” to the claim. Poly-Am., L.P. v. GSE 

Lining Tech., Inc., 383 F.3d 1303, 1309 (Fed. Cir. 2004). The specification indicates that the 

claims are directed to processing movies using an encoder. Specifically, the specification states 

that “[t]he present invention relates to a video encoder for processing sequences of animated 

pictures, such as movies, and to a corresponding decoder.” ’515 Patent at 1:5–8, see also id. at 

Abstract (“A video encoder and decoder are provided for processing a sequence of animated 

pictures in such a way that an interactive game, such as a puzzle for instance, may be played.”).

Thus, the specification indicates that a video encoder is essential to the claim. 

Moreover, the “video encoder” element introduced in the preamble provides context for 

the means-plus-function phrases. That is, the video encoder is “for processing a sequence of 

animated pictures” based on the disclosed algorithm related to the means-plus-function phrases. 

The preamble also supplies antecedent basis for “said sequence” recited in the body of claim 1. 

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Accordingly, the Court finds that “the preamble is essential to understand[ing] limitations or terms 

in the claim body.” Catalina Mktg. Int’l Inc. v. Coolsavings.com, Inc., 289 F.3d 801, 808 (Fed. 

Cir. 2002). Finally, in reaching its conclusion, the Court has considered the extrinsic evidence 

submitted by the parties, and given it its proper weight in light of the intrinsic evidence.

3. Court’s Construction

For the reasons set forth above, the preamble of claim 1 is limiting.

V. CONCLUSION

The Court adopts the constructions set forth in this opinion for the disputed terms of the 

patents-in-suit. The parties are ordered to not refer to each other’s claim construction positions in 

the presence of the jury. Likewise, in the presence of the jury, the parties are ordered to refrain 

from mentioning any portion of this opinion, other than the actual definitions adopted by the Court. 

The Court’s reasoning in this order binds the testimony of any witnesses, and any reference to the 

claim construction proceedings is limited to informing the jury of the definitions adopted by the 

Court.

.

____________________________________

ROY S. PAYNE

UNITED STATES MAGISTRATE JUDGE SIGNED this 3rd day of January, 2012. SIGNED this 4th day of February, 2020.

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