# US 12,113,692 B2 · Data transmission circuit and operation method thereof > Agents: this data is available as JSON from the patentgrep API and MCP server — see https://patentgrep.com/llms.txt - Number: US 12,113,692 B2 - Document ID: US12113692B2 - Status: Granted - Kind: B2 - Application number: 17/958,796 - Filed: 2022-10-03 - Published: 2023-09-14 - Granted: 2024-10-08 - Earliest claimed: 2022-03-08 - Assignees: SK hynix Inc. - Applicants: SK hynix Inc. - Inventors: In Seok Kong; Ki Yong Choi; Dong Seok Kim; Sung Mook Kim; Se Won Kim; Joo Won Oh; Keun Jin Chang - Web page: https://patentgrep.com/patent/US12113692B2 ## CPC - H04L 25/028: {Arrangements specific to the transmitter end} - H04L 43/087: Jitter - H01R 13/6461: Means for preventing cross-talk - H04L: TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION (arrangements common to telegraphic and telephonic communication H04M) - H01R: ELECTRICALLY-CONDUCTIVE CONNECTIONS; STRUCTURAL ASSOCIATIONS OF A PLURALITY OF MUTUALLY-INSULATED ELECTRICAL CONNECTING ELEMENTS; COUPLING DEVICES; CURRENT COLLECTORS ## Abstract A data transmission circuit may include a plurality of data transmission lines configured to transmit a victim data signal through a victim data transmission line, and transmit an adjacent data signal through an adjacent data transmission line disposed adjacent to the victim data transmission line; and a data input/output circuit configured to control a reference voltage level reflected into the victim data signal on the basis of data pattern information of the adjacent data signal, and compare the victim data signal to the reference voltage level and output the comparison result. ## Claims ### Claim 1 A data transmission circuit comprising: a data input/output circuit; and a plurality of data transmission lines including a victim data transmission line and an adjacent data transmission line adjacent to the victim data transmission line, the victim data transmission line being configured to transmit a victim data signal to the data input/output circuit and the adjacent data transmission line being configured to transmit an adjacent data signal to the data input/output circuit, wherein the data input/output circuit configured to: control a reference voltage level to be reflected into the victim data signal on the basis of data pattern information of the adjacent data signal, compare the victim data signal to the controlled reference voltage level; and output a result of the comparison of the victim data signal to the controlled reference voltage level. ### Claim 2 (depends on 1) The data transmission circuit according to claim 1, wherein the data pattern information comprises a transition state of the adjacent data signal. ### Claim 3 (depends on 1) The data transmission circuit according to claim 1, wherein the data pattern information comprises: first data pattern information which is activated when the adjacent data signal includes a first edge; and second data pattern information which is activated when the adjacent data signal includes a second edge. ### Claim 4 (depends on 1) The data transmission circuit according to claim 1, wherein the data input/output circuit comprises: a plurality of comparison circuits configured to generate a plurality of output signals by comparing the victim data signal to the respective reference voltages; and a select output circuit configured to output one of the plurality of output signals on the basis of the data pattern information. ### Claim 5 (depends on 4) The data transmission circuit according to claim 4, wherein a number of the plurality of comparison circuits correspond to a number of pieces of the data pattern information. ### Claim 6 (depends on 4) The data transmission circuit according to claim 4, wherein the plurality of comparison circuits comprises: a first comparison circuit configured to compare the victim data signal to a first reference voltage and output a result of the comparing of the victim data signal to the first reference voltage; a second comparison circuit configured to compare the victim data signal to a second reference voltage and output a result of the comparing of the victim data signal to the second reference voltage; and a third comparison circuit configured to compare the victim data signal to a third reference voltage and output a result of the comparing of the victim data signal to the third reference voltage. ### Claim 7 (depends on 6) The data transmission circuit according to claim 6, wherein the first to third reference voltages have different voltage levels, wherein the first reference voltage corresponds to a first edge of the adjacent data signal, and wherein the second reference voltage has a lower voltage level than the first reference voltage and corresponds to a second edge of the adjacent data signal. ### Claim 8 (depends on 6) The data transmission circuit according to claim 6, wherein the select output circuit outputs: the output of the first comparison circuit on the basis of the data pattern information corresponding to a first edge of the adjacent data signal; and the output of the second comparison circuit on the basis of the data pattern information corresponding to a second edge of the adjacent data signal. ### Claim 9 (depends on 4) The data transmission circuit according to claim 4, further comprising one or more synchronization circuits configured to synchronize, with a data strobe signal, the output signals of the plurality of comparison circuits and the select output circuit, and output the synchronized signals. ### Claim 10 (depends on 4) The data transmission circuit according to claim 4, further comprising a pattern information generation circuit configured to: detect a transition state of the adjacent data signal; and generate the data pattern information on the basis of the output signals of the plurality of comparison circuits and the output signals of the select output circuit. ### Claim 11 (depends on 1) The data transmission circuit according to claim 1, wherein the data input/output circuit comprises: a reference voltage control circuit configured to control the reference voltage level on the basis of the data pattern information; and a comparison circuit configured to compare the victim data signal to the reference voltage level and output a result of the comparison of the victim data signal to the reference voltage level. ### Claim 12 (depends on 11) The data transmission circuit according to claim 11, wherein the reference voltage level has a first voltage level in response to a first edge of the adjacent data signal and has a second voltage level lower than the first voltage level in response to a second edge of the adjacent data signal. ### Claim 13 (depends on 1) The data transmission circuit according to claim 1, further comprising a pattern information generation circuit configured to detect a transition state of the adjacent data signal; and generate the data pattern information on the basis of the transition state of the adjacent data signal. ### Claim 14 An operation method of a data transmission circuit, comprising: receiving a plurality of input data signals respectively through a plurality of data transmission lines; detecting data pattern information of an adjacent data signal corresponding to a victim data signal among the plurality of input data signals; controlling a reference voltage level to be reflected into the victim data signal on the basis of the data pattern information; and outputting an output data signal on the basis of the victim data signal into which the controlled reference voltage level is reflected. ### Claim 15 (depends on 14) The operation method according to claim 14, wherein the adjacent data signal is transmitted through an adjacent data transmission line disposed adjacent to a victim data transmission line to which the victim data signal is transmitted, among the plurality of data transmission lines. ### Claim 16 (depends on 15) The operation method according to claim 15, wherein the adjacent data transmission line comprises one or more data transmission lines disposed adjacent to the victim data transmission line. ### Claim 17 (depends on 14) The operation method according to claim 14, wherein the data pattern information comprises a transition state of the adjacent data signal. ### Claim 18 (depends on 14) The operation method according to claim 14, wherein the data pattern information comprises: first data pattern information which is activated when the adjacent data signal includes a first edge; and second data pattern information which is activated when the adjacent data signal includes a second edge. ### Claim 19 (depends on 14) The operation method according to claim 14, wherein the controlling of the reference voltage level comprises: comparing the victim data signal to a plurality of reference voltages to generate respective output signals; and outputting one of the output signals on the basis of the data pattern information. ### Claim 20 An operating method of a data transmission circuit, the method comprising: raising a reference voltage level to be compared with a victim data signal according to one of rising and falling edges of at least one adjacent data signal; and lowering the reference voltage level according to the other one of the rising and falling edges of the at least one adjacent data signal, wherein the victim data signal and adjacent data signal are transmitted by data signal lines adjacent to each other.