US5331450A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Infrared transmitter and receiver and method
Assignee: Samsung Electronics Co Ltd
•
Filing: 1992-01-06
•
Granted: 1994-07-19
•
Expires: 2012-01-06
Abstract
Abstract An infrared remote-control system and method for the simultaneous transmission of data from two or more separate hand transmitters to a single remote-control receiver is disclosed. Interference between transmitted signals is eliminated by interlacing control signals with quiescent periods during transmission. The control signals are received and validated by the receiver based on the quiescent periods.
Inventors
- 👤 Jerry J. Heep
- 👤 Steven S. Erickson
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-26 19:28
CPC Classifications
H; H03; H03J; H03J9/00; H03J9/06; G; G08; G08C; G08C19/00; G08C19/16; G08C19/28; H04; H04B; H04B1/00; H04B1/06; H04B1/16; H04B1/20; H04B1/205
Claims Analysis
Total Claims: 23
Claim 1
Independent Claim
124 words
An apparatus for transmitting control signals to a receiving device for operating a video system, comprising: a control signal generator for generating a control signal having a data pattern containing multiple identical data blocks interspersed with quiescent periods, said multiple data blocks being arranged in a pattern unique for the control signal and each of the data blocks being of a predetermined length for receipt by the receiver, with each control signal further including validation information to enable signal validation by the receiver; and, a transmitter coupled to the control signal generator for transmitting the signal, wherein the unique pattern allows the receiving device to receive at least one data block from the transmitter without interference from signals from at least one other transmitter.
Claim 2
Independent Claim
124 words
An apparatus for transmitting control signals to a receiving device for operating a video system, comprising: a control signal generator for generating a control signal having a data pattern containing multiple identical data blocks interspersed with quiescent periods, said multiple data blocks being arranged in a pattern unique for the control signal and each of the data blocks being of a predetermined length for receipt by the receiver, with each control signal further including validation information to enable signal validation by the receiver; and, a transmitter coupled to the control signal generator for transmitting the signal, wherein the unique pattern allows the receiving device to receive at least one data block from the transmitter without interference from signals from at least one other transmitter.
Claim 3
Dependent Claim
13 words
The apparatus of claim 1 wherein the control signal generator is a microprocessor.
Claim 4
Dependent Claim
30 words
The apparatus of claim 2 wherein the microprocessor is programmed to generate a 2 n data burst of data blocks, wherein n is greater than or equal to one (1).
Claim 5
Dependent Claim
20 words
The apparatus of claim 3 wherein the number n represents a total number of transmitters used with the receiving device.
Claim 6
Dependent Claim
20 words
The apparatus of claim 2 wherein the microprocessor is programmed to generate the signal validation information represented as parity structure.
Claim 7
Dependent Claim
31 words
The apparatus of claim 1 further comprising an infrared signal generator for generating infrared signals in response to the signals generated by the control signal generator for transmission by the transmitter.
Claim 8
Independent Claim
112 words
An apparatus for receiving control signals for operating a video system, comprising: a signal detector for detecting the control signals sent by a plurality of signal transmitting devices; and, a signal decoder coupled to the signal detector for decoding and validating the control signals in a manner that identifies one signal from another, wherein each control signal has a data pattern containing multiple data blocks interspersed with quiescent periods being arranged in a pattern unique for that control signal, each of the data blocks being of a predetermined length for receipt by the receiving apparatus, and with each control signal further including validation information to enable signal validation by the receiving apparatus.
Claim 9
Independent Claim
112 words
An apparatus for receiving control signals for operating a video system, comprising: a signal detector for detecting the control signals sent by a plurality of signal transmitting devices; and, a signal decoder coupled to the signal detector for decoding and validating the control signals in a manner that identifies one signal from another, wherein each control signal has a data pattern containing multiple data blocks interspersed with quiescent periods being arranged in a pattern unique for that control signal, each of the data blocks being of a predetermined length for receipt by the receiving apparatus, and with each control signal further including validation information to enable signal validation by the receiving apparatus.
Claim 10
Dependent Claim
12 words
The apparatus of claim 7 wherein the signal decoder is a microprocessor.
Claim 11
Dependent Claim
20 words
The apparatus of claim 8 wherein the microprocessor is programed to identify the data block based on its predetermined length.
Claim 12
Dependent Claim
26 words
The apparatus of claim 9 wherein the microprocessor is further programmed to validate the control signal based on a parity structure contained within the control signal.
Claim 13
Dependent Claim
30 words
The apparatus of claim 7 further comprising a storage means coupled to the signal decoder for storing each transmitted signal after validation and before being outputted to the video system.
Claim 14
Dependent Claim
13 words
The apparatus of claim 11 wherein the storage means is an 8-bit register.
Claim 15
Dependent Claim
76 words
The apparatus of claim 7 wherein at least n number of transmitters are capable of substantially simultaneous operation with the receiving apparatus and wherein the control signal generated by each transmitter comprises at least 2 n data blocks, where n is greater than or equal to one (1), in a pattern unique for that control signal thereby allowing the receiver to decode each control signal received and identify at least one data block from each transmitter.
Claim 16
Dependent Claim
12 words
The apparatus of claim 7 further comprising means for detecting infrared signals.
Claim 17
Independent Claim
136 words
A method for allowing one signal receiver and a plurality of signal transmitters to operate a video system, comprising the steps of: in each transmitter, generating a control signal having a data pattern containing multiple identical data blocks arranged in a pattern unique for that transmitter, each of the data blocks being a predetermined length for receipt by the receiver and wherein the control signal further includes validation information to enable signal validation by the receiver, wherein each transmitter operates on the same frequency; transmitting the control signal from at least one transmitter to the receiver; detecting the transmitted control signal by the receiver; identifying, in the control signal, at least one data block based on its predetermined length; validating the control signal based on the validation information in the control signal to determine its accuracy.
Claim 18
Independent Claim
136 words
A method for allowing one signal receiver and a plurality of signal transmitters to operate a video system, comprising the steps of: in each transmitter, generating a control signal having a data pattern containing multiple identical data blocks arranged in a pattern unique for that transmitter, each of the data blocks being a predetermined length for receipt by the receiver and wherein the control signal further includes validation information to enable signal validation by the receiver, wherein each transmitter operates on the same frequency; transmitting the control signal from at least one transmitter to the receiver; detecting the transmitted control signal by the receiver; identifying, in the control signal, at least one data block based on its predetermined length; validating the control signal based on the validation information in the control signal to determine its accuracy.
Claim 19
Dependent Claim
38 words
The method of claim 15 wherein the step of validating the control signal includes the steps of: checking validation information for a parity structure; and then, matching the parity structure against the data block to determine its correctness.
Claim 20
Dependent Claim
25 words
The method of claim 15 further comprising the steps of: storing the validated data block; sending the stored validated data block to the video system.
Claim 21
Dependent Claim
75 words
The method of claim 15 wherein at least n number of transmitters are capable of substantially simultaneous operation with the receiver and wherein the control signal generated by each transmitter comprises at least 2 n data blocks, where n is greater than or equal to one (1), in a pattern unique for that control signal thereby allowing the receiver to decode each control signal received and identify at least one data block from each transmitter.
Claim 22
Dependent Claim
24 words
The method of claim 18 wherein the uniqueness of each control signal is determined by a unique quiescent period interspersed with the data blocks.
Claim 23
Dependent Claim
12 words
The method of claim 15 wherein the control signal is infrared signals.
References Cited (Backward Citations)
US4151407A
Cited
US4313227A
Cited
US4337480A
Cited
US4325146A
Cited
US4356509A
Cited
US4626848A
Cited
US4769643A
Cited
US4701909A
Cited
US5128792A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1997-07-18 | 1998-01-17 | 1998-07-19 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 2001-07-18 | 2002-01-17 | 2002-07-19 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 2005-07-18 | 2006-01-17 | 2006-07-19 | $7700.00 | Window Closed / Lapsed |