Read data processor with power supply low voltage fault detector (326.1.1), 212 (1200 BPS) modem (222.7.1)



212 (1200 BPS) modem (222.7.1)

Type of Work:
Mask work
Registration Number / Date:
MW0000004789 / 1989-05-22
Date of First Exploitation:
7Dec87
Title:
212 (1200 BPS) modem (222.7.1)
Basis of Claim:
New Matter: modified version.
Description:
4 semiconductor chips in housings, 9 col. plastic overlay sheets + plot.
Other Title:
222.7.1
Copyright Claimant:
Silicon Systems, Inc.
Names:
Silicon Systems, Inc. (84 documents)
example document: Intermediate frequency modem/transceiver (3048.1.1)

Read/write preamp (257.2.1)

Type of Work:
Mask work
Registration Number / Date:
MW0000004790 / 1989-05-22
Date of First Exploitation:
4Jun87
Title:
Read/write preamp (257.2.1)
Basis of Claim:
New Matter: modified version.
Description:
4 semiconductor chips in housings, 9 plastic overlay sheets + plot.
Other Title:
257.2.1
Copyright Claimant:
Silicon Systems, Inc.
Names:
Silicon Systems, Inc. (84 documents)
example document: Intermediate frequency modem/transceiver (3048.1.1)

4-channel read write mirror image (104.7.1)

Type of Work:
Mask work
Registration Number / Date:
MW0000004791 / 1989-05-22
Date of First Exploitation:
19Jun87
Title:
4-channel read write mirror image (104.7.1)
Basis of Claim:
New Matter: modified version.
Description:
4 semiconductor chips, 9 plastic overlay sheets + plot.
Other Title:
104.7.1
Copyright Claimant:
Silicon Systems, Inc.
Names:
Silicon Systems, Inc. (84 documents)
example document: Intermediate frequency modem/transceiver (3048.1.1)

Modem analog and glue chip (365.1.1)

Type of Work:
Mask work
Registration Number / Date:
MW0000004792 / 1989-05-22
Date of First Exploitation:
9Jun87
Title:
Modem analog and glue chip (365.1.1)
Basis of Claim:
New Matter: entire mask work.
Description:
4 semiconductor chips, 10 col. plastic overlay sheets + plot.
Other Title:
365.1.1
Copyright Claimant:
Silicon Systems, Inc.
Names:
Silicon Systems, Inc. (84 documents)
example document: Intermediate frequency modem/transceiver (3048.1.1)

Ring detector (312.3.1

Type of Work:
Mask work
Registration Number / Date:
MW0000004812 / 1989-05-22
Date of First Exploitation:
2Oct87
Title:
Ring detector (312.3.1.
Basis of Claim:
New Matter: modified version.
Description:
4 semiconductor chips, 9 plastic overlay sheets + plot.
Other Title:
312.3.1
Copyright Claimant:
Silicon Systems, Inc.
Names:
Silicon Systems, Inc. (84 documents)
example document: Intermediate frequency modem/transceiver (3048.1.1)

Custom motor braking circuit (323.1.1)

Type of Work:
Mask work
Registration Number / Date:
MW0000004916 / 1989-07-06
Date of First Exploitation:
27Jan88
Title:
Custom motor braking circuit (323.1.1)
Basis of Claim:
New Matter: entire mask work.
Description:
4 semiconductor chips in housings, 12 plastic overlay sheets + plot.
Other Title:
323.1.1
Copyright Claimant:
Silicon Systems, Inc.
Names:
Silicon Systems, Inc. (84 documents)
example document: Intermediate frequency modem/transceiver (3048.1.1)

Differential amplifier (116.2.1)

Type of Work:
Mask work
Registration Number / Date:
MW0000004937 / 1989-07-05
Date of First Exploitation:
20Jan88
Title:
Differential amplifier (116.2.1)
Basis of Claim:
New Matter: modified version.
Description:
4 semiconductor chips, 9 col. plastic overlay sheets + plot.
Other Title:
116.2.1
Copyright Claimant:
Silicon Systems, Inc.
Names:
Silicon Systems, Inc. (84 documents)
example document: Intermediate frequency modem/transceiver (3048.1.1)

Read data processor with delay line equalizer (324.1.1)

Type of Work:
Mask work
Registration Number / Date:
MW0000004938 / 1989-07-03
Date of First Exploitation:
17Mar88
Title:
Read data processor with delay line equalizer (324.1.1)
Basis of Claim:
New Matter: modified version.
Description:
4 semiconductor chips, 10 col. plastic overlay sheets + plot.
Other Title:
324.1.1
Copyright Claimant:
Silicon Systems, Inc.
Names:
Silicon Systems, Inc. (84 documents)
example document: Intermediate frequency modem/transceiver (3048.1.1)

Read data processor with power supply low voltage fault detector (326.1.1)

Type of Work:
Mask work
Registration Number / Date:
MW0000004939 / 1989-07-03
Date of First Exploitation:
2May88
Title:
Read data processor with power supply low voltage fault detector (326.1.1)
Basis of Claim:
New Matter: modified version.
Description:
4 semiconductor chips, 10 col. plastic overlay sheets + plot.
Other Title:
326.1.1
Copyright Claimant:
Silicon Systems, Inc.
Names:
Silicon Systems, Inc. (84 documents)
example document: Intermediate frequency modem/transceiver (3048.1.1)

UART (219.1.1)

Type of Work:
Mask work
Registration Number / Date:
MW0000004952 / 1989-07-07
Date of First Exploitation:
6Apr88
Title:
UART (219.1.1)
Basis of Claim:
New Matter: modified version.
Description:
4 semiconductor chips, 9 col. plastic overlay sheets + plot.
Other Title:
219.1.1
Copyright Claimant:
Silicon Systems, Inc.
Names:
Silicon Systems, Inc. (84 documents)
example document: Intermediate frequency modem/transceiver (3048.1.1)

2 channel read/write (314.1.1)

Type of Work:
Mask work
Registration Number / Date:
MW0000004953 / 1989-07-07
Date of First Exploitation:
21Sep88
Title:
2 channel read/write (314.1.1)
Basis of Claim:
New Matter: entire mask work.
Description:
4 semiconductor chips in housings, 10 col. plastic overlay sheets + plot.
Other Title:
314.1.1
Copyright Claimant:
Silicon Systems, Inc.
Names:
Silicon Systems, Inc. (84 documents)
example document: Intermediate frequency modem/transceiver (3048.1.1)

V.23 European standard modem (223.1.1)

Type of Work:
Mask work
Registration Number / Date:
MW0000004954 / 1989-07-07
Date of First Exploitation:
14Jan88
Title:
V.23 European standard modem (223.1.1)
Basis of Claim:
New Matter: modified version.
Description:
4 semiconductor chips, 9 plastic overlay sheets + plot.
Other Title:
223.1.1
Copyright Claimant:
Silicon Systems, Inc.
Names:
Silicon Systems, Inc. (84 documents)
example document: Intermediate frequency modem/transceiver (3048.1.1)

212 modem with UART (218.3.1)

Type of Work:
Mask work
Registration Number / Date:
MW0000004955 / 1989-07-07
Date of First Exploitation:
21Apr88
Title:
212 modem with UART (218.3.1)
Basis of Claim:
New Matter: modified version.
Description:
4 semiconductor chips, 9 plastic overlay sheets + plot.
Other Title:
218.3.1
Copyright Claimant:
Silicon Systems, Inc.
Names:
Silicon Systems, Inc. (84 documents)
example document: Intermediate frequency modem/transceiver (3048.1.1)

Servo motor driver (313.2.1)

Type of Work:
Mask work
Registration Number / Date:
MW0000004956 / 1989-07-06
Date of First Exploitation:
11Jan88
Title:
Servo motor driver (313.2.1)
Basis of Claim:
New Matter: modified version.
Description:
4 semiconductor chips, 10 plastic overlay sheets + plot.
Other Title:
313.2.1
Copyright Claimant:
Silicon Systems, Inc.
Names:
Silicon Systems, Inc. (84 documents)
example document: Intermediate frequency modem/transceiver (3048.1.1)

Loopback analog front end (299.2.1)

Type of Work:
Mask work
Registration Number / Date:
MW0000003875 / 1988-07-15
Date of First Exploitation:
31Jul86
Title:
Loopback analog front end (299.2.1)
Basis of Claim:
New Matter: entire mask work.
Description:
4 semiconductor chips, 9 acetate overlays + plot with portions blanked.
Other Title:
299.2.1
Copyright Claimant:
Silicon Systems, Inc.
Names:
Silicon Systems, Inc. (84 documents)
example document: Intermediate frequency modem/transceiver (3048.1.1)

Five volt, DTMF receiver (202.2.1)

Type of Work:
Mask work
Registration Number / Date:
MW0000001461 / 1985-06-28
Date of First Exploitation:
15Aug84
Title:
Five volt, DTMF receiver (202.2.1)
Copyright Note:
C.O. correspondence.
Description:
4 semiconductor chips + 10 photocopies of overlays.
Copyright Claimant:
Silicon Systems, Inc.
Notes:
Appl. states one photocopy submitted with portions blanked.
Names:
Silicon Systems, Inc. (84 documents)
example document: Intermediate frequency modem/transceiver (3048.1.1)

Precise call progress detector, special (278.2.2)

Type of Work:
Mask work
Registration Number / Date:
MW0000001462 / 1985-06-28
Date of First Exploitation:
1Dec84
Title:
Precise call progress detector, special (278.2.2)
Basis of Claim:
New Matter: additional features implemented through modified mask layers.
Copyright Note:
C.O. correspondence.
Description:
4 semiconductor chips + 10 photocopies of overlays.
Copyright Claimant:
Silicon Systems, Inc.
Notes:
Appl. states one photocopy submitted with portions blanked.
Based on 278.1.1.
Names:
Silicon Systems, Inc. (84 documents)
example document: Intermediate frequency modem/transceiver (3048.1.1)

Phoneme speech synthesizer (263.2.1)

Type of Work:
Mask work
Registration Number / Date:
MW0000001463 / 1985-06-28
Date of First Exploitation:
1Mar84
Title:
Phoneme speech synthesizer (263.2.1)
Basis of Claim:
New Matter: additions & modifications.
Copyright Note:
C.O. correspondence.
Description:
4 semiconductor chips, 7 plastic overlay sheets + 1 photocopy of overlay.
Copyright Claimant:
Silicon Systems, Inc.
Notes:
Appl. states photocopy submitted with portions blanked.
Based on S S I's 263.1.1 phoneme speech synthesizer.
Names:
Silicon Systems, Inc. (84 documents)
example document: Intermediate frequency modem/transceiver (3048.1.1)

Phoneme speech synthesizer (263.1.1)

Type of Work:
Mask work
Registration Number / Date:
MW0000001464 / 1985-06-28
Date of First Exploitation:
1Sep83
Title:
Phoneme speech synthesizer (263.1.1)
Copyright Note:
C.O. correspondence.
Description:
4 semiconductor chips, 1 plastic overlay sheet, 4 photocopies of overlays + 3 photos.
Copyright Claimant:
Silicon Systems, Inc.
Notes:
Appl. states one photocopy submitted with portions blanked.
Names:
Silicon Systems, Inc. (84 documents)
example document: Intermediate frequency modem/transceiver (3048.1.1)

Port expander floppy disk drive (580.1.2)

Type of Work:
Mask work
Registration Number / Date:
MW0000001465 / 1985-06-28
Date of First Exploitation:
1Sep84
Title:
Port expander floppy disk drive (580.1.2)
Copyright Note:
C.O. correspondence.
Description:
4 semiconductor chips, 9 plastic overlay sheets, 1 photo. + 1 photocopy of overlay.
Copyright Claimant:
Silicon Systems, Inc.
Notes:
Appl. states photocopy submitted with portions blanked.
Names:
Silicon Systems, Inc. (84 documents)
example document: Intermediate frequency modem/transceiver (3048.1.1)

Imprecise call progress detector (274.1.2)

Type of Work:
Mask work
Registration Number / Date:
MW0000001466 / 1985-06-28
Date of First Exploitation:
1Feb84
Title:
Imprecise call progress detector (274.1.2)
Copyright Note:
C.O. correspondence.
Description:
4 semiconductor chips, 9 plastic overlay sheets + 1 photocopy of overlay.
Copyright Claimant:
Silicon Systems, Inc.
Notes:
Appl. states photocopy submitted with portions blanked.
Names:
Silicon Systems, Inc. (84 documents)
example document: Intermediate frequency modem/transceiver (3048.1.1)

Four channel magnetic tape read circuit (271.1.1)

Type of Work:
Mask work
Registration Number / Date:
MW0000001467 / 1985-06-28
Date of First Exploitation:
1Jan84
Title:
Four channel magnetic tape read circuit (271.1.1)
Copyright Note:
C.O. correspondence.
Description:
4 semiconductor chips, 9 plastic overlay sheets + 1 photocopy of overlay.
Copyright Claimant:
Silicon Systems, Inc.
Notes:
Appl. states photocopy submitted with portions blanked.
Names:
Silicon Systems, Inc. (84 documents)
example document: Intermediate frequency modem/transceiver (3048.1.1)

Five volt DTMF receiver (202.4.10)

Type of Work:
Mask work
Registration Number / Date:
MW0000001468 / 1985-06-28
Date of First Exploitation:
1Dec84
Title:
Five volt DTMF receiver (202.4.10)
Basis of Claim:
New Matter: shrunk version; additions & modifications.
Copyright Note:
C.O. correspondence.
Description:
4 semiconductor chips, 7 plastic overlay sheets + 1 photocopy of overlay.
Copyright Claimant:
Silicon Systems, Inc.
Notes:
Appl. states photocopy submitted with portions blanked.
Based on S S I's 202.2.1.
Names:
Silicon Systems, Inc. (84 documents)
example document: Intermediate frequency modem/transceiver (3048.1.1)

Switched capacitor filter array (601.3.2)

Type of Work:
Mask work
Registration Number / Date:
MW0000001469 / 1985-06-28
Date of First Exploitation:
1Oct84
Title:
Switched capacitor filter array (601.3.2)
Copyright Note:
C.O. correspondence.
Description:
4 semiconductor chips, 9 plastic overlay sheets + 1 photocopy of overlay.
Copyright Claimant:
Silicon Systems, Inc.
Notes:
Appl. states photocopy submitted with portions blanked.
Names:
Silicon Systems, Inc. (84 documents)
example document: Intermediate frequency modem/transceiver (3048.1.1)

Read data processor (540.1.2.)

Type of Work:
Mask work
Registration Number / Date:
MW0000001470 / 1985-06-28
Date of First Exploitation:
1Oct84
Title:
Read data processor (540.1.2.)
Basis of Claim:
New Matter: additions & modifications.
Copyright Note:
C.O. correspondence.
Description:
4 semiconductor chips, 10 plastic overlay sheets + 1 photocopy of overlay.
Copyright Claimant:
Silicon Systems, Inc.
Notes:
Appl. states photocopy submitted with portions blanked.
Performer:
Based on S S I's read data processing chip 540.1.1.
Names:
Silicon Systems, Inc. (84 documents)
example document: Intermediate frequency modem/transceiver (3048.1.1)

Read data processor (277.1.2.)

Type of Work:
Mask work
Registration Number / Date:
MW0000001471 / 1985-06-28
Date of First Exploitation:
1Jan84
Title:
Read data processor (277.1.2.)
Copyright Note:
C.O. correspondence.
Description:
4 semiconductor chips in housings, 9 plastic overlay sheets + 2 photocopies of overlays.
Copyright Claimant:
Silicon Systems, Inc.
Notes:
Appl. states photocopies submitted with portions blanked.
Names:
Silicon Systems, Inc. (84 documents)
example document: Intermediate frequency modem/transceiver (3048.1.1)

Two-phase brushless motor controller (267.1.2)

Type of Work:
Mask work
Registration Number / Date:
MW0000001472 / 1985-06-28
Date of First Exploitation:
1Jan84
Title:
Two-phase brushless motor controller (267.1.2)
Copyright Note:
C.O. correspondence.
Description:
4 semiconductor chips in housings, 9 plastic overlay sheets + 1 photocopy of overlay.
Copyright Claimant:
Silicon Systems, Inc.
Notes:
Appl. states photocopy submitted with portions blanked.
Names:
Silicon Systems, Inc. (84 documents)
example document: Intermediate frequency modem/transceiver (3048.1.1)

Five volt DTMF transceiver with call progress detector (281.2.1)

Type of Work:
Mask work
Registration Number / Date:
MW0000001473 / 1985-06-28
Date of First Exploitation:
1Dec84
Title:
Five volt DTMF transceiver with call progress detector (281.2.1)
Copyright Note:
C.O. correspondence.
Description:
4 semiconductor chips, 9 plastic overlay sheets + 1 photocopy of overlay.
Other Title:
5V DTMF transceiver.
Copyright Claimant:
Silicon Systems, Inc.
Notes:
On deposit copies: 5V DTMF transceiver.
Appl. states photocopy submitted with portions blanked.
Names:
Silicon Systems, Inc. (84 documents)
example document: Intermediate frequency modem/transceiver (3048.1.1)

Five volt low power subscriber DTMF receiver (202.3.1)

Type of Work:
Mask work
Registration Number / Date:
MW0000001474 / 1985-06-28
Date of First Exploitation:
1May84
Title:
Five volt low power subscriber DTMF receiver (202.3.1)
Basis of Claim:
New Matter: additions & modifications.
Copyright Note:
C.O. correspondence.
Description:
4 semiconductor chips, 9 plastic overlay sheets + 1 photocopy of overlay.
Other Title:
Five volt DTMF receiver (202.3.1)
Copyright Claimant:
Silicon Systems, Inc.
Notes:
On copies: Five volt DTMF receiver (202.3.1).
Appl. states photocopy submitted with portions blanked.
Metal mask variation based on S S I's five volt DTMF receiver 202.2.1.
Names:
Silicon Systems, Inc. (84 documents)
example document: Intermediate frequency modem/transceiver (3048.1.1)

Eight channel read/write circuit, no damping resistors (501.4.1)

Type of Work:
Mask work
Registration Number / Date:
MW0000001475 / 1985-06-28
Date of First Exploitation:
1Oct83
Title:
Eight channel read/write circuit, no damping resistors (501.4.1)
Copyright Note:
C.O. correspondence.
Description:
4 semiconductor chips, 11 plastic overlay sheets + 1 photocopy of overlay.
Other Title:
8 channel read/write circuit.
Copyright Claimant:
Silicon Systems, Inc.
Notes:
Appl. states photocopy submitted with portions blanked.
Performer:
On deposit copies: 8 channel read/write circuit.
Names:
Silicon Systems, Inc. (84 documents)
example document: Intermediate frequency modem/transceiver (3048.1.1)
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